Mani in support was really helpful. However their portal is not very intuitive and does not work fully in Safari. They should mention this is the case. The service itself is excellent.
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Very willing to help to try and solve my Internet download issues. Explained in lay man terms the changes that we could make to improve the situation and was very patient whilst we made the changes. T... See more
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Thank you Tia for your understanding + patience when you were confronted with our office query. Nothing seemed to be too much trouble + I really appreciated your assistance + expertise in resolving... See more
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I could hear the positivity in Muskan's tone of voice. They were very helpful, we were met with a few hurdles, however, Muskan did not give up until she was able to find a solution to my phone iss... See more
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Company details
- Telecommunications Service Provider
- also in
- Cloud Computing Service
- Computer Support and Service Company
- Internet Service Provider
- Phone and Internet Service
Written by the company
Onecom is the UK’s leading provider of business communications and IT Services, with over 20 years of industry experience. Operating from regional offices across the UK, we manage nearly 100,000 business organisations, delivering IT services and unified solutions across fixed-line voice, contact centre, connectivity, and managed cloud to some of the UK’s most dynamic companies. Our expertise is recognised through numerous accolades, including the ‘Best Enterprise Contact Centre Solution’ at the Comms National Awards, Five9 EMEA Partner of the Year for the second consecutive year, Zoom EMEA Innovation Partner of the Year and Vodafone Strategic Partner of the Year for the last fourteen years.
Contact info
United Kingdom
- 03300 888999
- care@onecom.co.uk
- www.onecom.co.uk
3.7
Average
14K reviews
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This company invites their customers to review, whether positive or negative
Replied to 97% of negative reviews
Typically replies within 1 week
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SCAM - literally.
Yeah as others saying, these are a total scam. Called me probably 2-4 times a week for over a year, to finally get me distracted on a call signing up for a 'half price' contract which they have never provided anything for, before already signing me up for another product within 24 hours for £9.99 i had to 'opt-out' of before the trial was over! I knew the writing was on the wall at that point and quickly reviewed this 'contract' assuming i have a cooling off period to easily review and cancel...
Then, i see that i've signed my life and first born children away on the call with every conceivable waiver to consumer and human rights for a £15/mth contract - including any right to cancel or cooling off period. That's because what they intend to do is provide nothing of value, so you are forced to cancel and their contract says you agree under any terms of cancellation to pay them the full 36 months !! (only allowed more than 24 months because you also signed that away!!).
In what Universe does providing 0 mins of even connection to their digital network, on a digitally supplied esim, warrant paying 3 years at £540 just to get my business PAC number back? It's an ofcom regulation that i didn't waive, fortunately, that they have to provide, instead i've been left with nothing and a number i've had for 25 years of business locked with a scam company refusing to do what is legally required of them, holding it to ransom.
November 11, 2026
Unprompted review
I am going through the complaints…
I am going through the complaints process regarding a mis sold contract with onecom. We have still not agreed to a deal after 5 weeks therefore I will escalate to cisas. Refer to facebook group for help
November 10, 2026
Unprompted review
Reply from Onecom
Hi Stewart,
Thank you for taking the time to share your feedback.
We’re sorry to hear that you remain dissatisfied with your experience. We would like to reassure you that we operate in full compliance with all relevant regulations and industry standards.
While we are unable to take any further action, we appreciate you raising your concerns.
Should you wish to pursue this further, we will of course cooperate fully with any formal review process.
Kind regards,
The Onecom Team
This company are a complete fraud and…
This company are a complete fraud and how they’re allowed to operate,I do not know. Stay away at all costs trust me you’ll be thankful.
Absolutely disgraceful, robbing people blind, they should be ashamed
November 10, 2026
Unprompted review
Reply from Onecom
Hi,
Thank you for sharing your experience with us. We’re really sorry to hear how upsetting this has been for you.
We always want our customers to feel in control and well-informed, so your feedback is very important to us. If you would like us to take a closer look at your situation our team
would be happy to help – please get in touch at care@onecom.co.uk.
Thank you again for highlighting this.
Kind regards,
The Onecom Team
I think I have been scammed by this company
I think I have been scammed by this company, and I have names and phone call recordings of how I was marketed into leaving my previous network provider to join another network provider. I have ended up being charged £480 more than bargained, and no sensible person is taking my calls. People be warned. I have ongoing complaints that make me call onecome every week to resolve the issues but i keep getting the response "we will get back to you in 24-48 hours" this has happened endlessly.PEOPLE BEWARE
November 10, 2026
Unprompted review
Reply from Onecom
Hi Patrick,
Thank you for sharing your experience with us. We’re really sorry to hear how upsetting this has been for you.
We always want our customers to feel in control and well-informed, so your feedback is very important to us.
If you would like us to take a closer look at your situation our team
would be happy to help – please get in touch at care@onecom.co.uk.
Thank you again for highlighting this.
Kind regards,
The Onecom Team
Shocking customer service.
Shocking customer service.
Upgraded my home account twice without asking, invoiced me fro a missed engineers visit, which i knew nothing about. They have now upgraded my business account with a HALO system, and Ive absolutely no idea what that is. And i didnt order it. And now they seem to be tricky to get hold of on the phone.
AVOID at all costs.
November 10, 2026
Unprompted review
Reply from Onecom
Hi,
Thank you for taking the time to share your feedback. We're really sorry to hear that you feel this way about your experience.
We take concerns like yours very seriously. At Onecom, we always aim to provide a positive and transparent experience, and we’re sorry to hear that on this occasion, you were left feeling dissatisfied.
If you would like us to review your situation in more detail, please do get in touch with our team at care@onecom.co.uk. We would be happy to listen and see if there is anything further we
can do to support you.
Kind regards,
The Onecom Team
Guys be aware of company
Guys be aware of company. It’s a scam. You will end up more money than they say ok the phone and do not go on a contract as your life will be screwed
November 10, 2026
Unprompted review
Reply from Onecom
Hi Francis,
Thank you for sharing your feedback. We're sorry to hear that you were left feeling dissatisfied with your experience.
We would like to reassure you that we operate in full compliance with all relevant regulations and industry standards. Our processes are designed to be transparent, and customer consent is always a key part of any agreement. We are sorry if this was not your experience and appreciate you bringing your concerns to our attention.
Your feedback will be shared with our management team as part of our ongoing service reviews.
Thank you again for highlighting this.
Kind regards,
Onecom
An unsmooth transition from Gradwell
Previously was using Gradwell, but Onecom acquired them. In the last few weeks, it seems like a lot of the Gradwell team have been shunted to 'harmonise' with Onecom's standard operations. The main pain point I'm feeling now is with number ports. Gradwell were on the ball with them- I received regular status updates.
Since the shunt, the previous number ports I had in progress seem to have dropped off the radar. I'm having to constantly chase for updates and don't feel like they're acknowledging. I also have to do about double the work for ports now- they want the same information filled out twice in different forms.
Its almost like they handed off all of Gradwell's open tickets to a new Onecom team without any handover on the old processes. Now it feels completely chaotic.
November 10, 2026
Unprompted review
Abhinav Bansal 👌🏻
Abhinav Bansal, the advisor that assisted me, was fantastic!
Solved all issues in a friendly and professional manner.
Completely put my mind at ease after losing my phone and even helped me keep same number
Great service
November 9, 2026
Unprompted review
Avoid at all costs!!!
Avoid at all costs!!!! We are small business. Signed the deal with total monthly amount of £38. Guess what. Being charged almost double. Extra charges out of nowhere, sales reps mis selling deals/add ons without explanation or giving any options.
Customer service advisor Abhijeet Kumar was lying in the email that there is no original contract agreement recording.
DD cancelled . Will take it further if no one will sort this mess out.
October 12, 2026
Unprompted review
Reply from Onecom
Hi,
Thank you for taking the time to share your feedback. We’re sorry to hear that you remain dissatisfied with your experience.
We would like to reassure you that we operate in full compliance with all relevant regulations and industry standards. After reviewing your case, we are satisfied that all processes were followed correctly and that the agreement was made with full consent.
While we are unable to take any further action, we appreciate you raising your concerns. Should you wish to pursue this further, we will of course cooperate fully with any formal review process.
Thank you again for your feedback.
Kind regards,
The Onecom Team
Do not trust the Sales exsecutives the…
Do not trust the Sales exsecutives the upfront sevice was great. NOW NO PHONE use on my main line for 2 weeks, texts boucning 4 call agents not sorting it out none speaking fluent english, no new mobile for 2 weeks oh it was out of stock noone told me, 4 calls later a whole day on the phone plus emails complainingyou ring the exsecutive number - indian call cneter - absolute rubbihs they pulled this out until past 14 days to cancel now i'm stuck i will be moving back to Three as soon as possible.
November 9, 2026
Unprompted review
Reply from Onecom
Hi ,
Thank you for taking the time to leave your review. We’re genuinely sorry that you remain unhappy with your experience.
We want to reassure you that, after a thorough review, we are confident that all processes were followed correctly and in full compliance with industry regulations.
We appreciate that this may not be the outcome you were hoping for, but please know that your feedback has
been heard and taken seriously.
Thank you again for sharing your thoughts with us.
Kind regards,
The Onecom Team
Bhavya was very helpful in getting the…
Bhavya was very helpful in getting the internet working again. Thank you Peter Bruche Motors.
November 9, 2026
Unprompted review
Reply from Onecom
Hi, Thank you for your feedback. We're delighted to hear that Bhavya was able to help get your internet service back up and running. We'll be sure to pass on your kind words and appreciation.
Best Regards,
Customer Operations Leadership Team.
Clear Instructions
The technician Sunep was patient and explained things fully. It took us a while to get things sorted it was quite complex and as I am not a technician I needed everything explained.
November 9, 2026
Unprompted review
Reply from Onecom
Hi, Thank you for your feedback. We're delighted to hear that Sunep provided patient and thorough support throughout the process. We understand that technical issues can be complex, so it's great to know that his clear explanations helped make everything easier to follow and ultimately get the issue resolved.
Best Regards,
Customer Operations Leadership Team.
Onecom m******s has just lose me a…
Onecom m******s has just lose me a major business deal due to there unreliability services. I would recommend them to even my worst enemy. Beware of this scam!!!
November 9, 2026
Unprompted review
Reply from Onecom
Hi ,
Thank you for sharing your experience with us. We’re really sorry to hear how upsetting this has been for you.
We always want our customers to feel in control and well-informed, so your feedback is very important to us.
If you would like us to take a closer look at your situation our team would be happy to help – please get in touch at care@onecom.co.uk
Thank you again for highlighting this.
Kind regards,
The Onecom Team
As a company Onecom have provided a…
As a company Onecom have provided a high standard in service. Communication has been great, especially from support officer Margaret Adesoro. We deal with alot of users at MUFG but the response from Onecom for any mobile issues has been great!
November 6, 2026
Unprompted review
Reply from Onecom
Hi, Thank you for your wonderful feedback. We're delighted to hear that you've experienced such a high standard of service from Onecom and that Margaret Adesoro has provided excellent support. Delivering responsive and reliable assistance is something we take great pride in, so it's fantastic to know that our team has been able to support MUFG effectively with your mobile services.
Thank you for your continued trust in Onecom.
Best Regards,
Customer Operations Leadership Team.
Crooks is disguise
Crooks is disguise. Will give you a good offer on the phone, you’ll verbally agree to a contract to later find out you are not getting what you signed up for at all. Avoid at all costs stick with reputable companies. Almost impossible to get out of the contract without paying through the teeth. Worst experience ever!!!
November 6, 2026
Unprompted review
Reply from Onecom
Hi,
Thank you for taking the time to leave your review. We’re genuinely sorry that you remain unhappy with your experience.
We want to reassure you that, after a thorough review, we are confident that all processes were followed correctly and in full compliance with industry regulations.
We appreciate that this may not be the outcome you were hoping for, but please know that your feedback has been heard and taken seriously.
Thank you again for sharing your thoughts with us.
Kind regards,
The Onecom Team
Be careful what you sign up for
Be careful what you sign up for
You sign up for a three-year contract, but they only give you the discount for half of it. Halfway through, they contact you to say your discount has ended, and if you don't renew, you'll pay full price for the rest of your contract. I'm now paying £130 for two SIM-only contracts because I didn't want to renew. There are much better SIM-only deals out there.
If you're reading this, please DO NOT sign up for anything. Customers have even created a Facebook group because of their bad practices do you research...
September 17, 2026
Unprompted review
Reply from Onecom
Hi Mr Wright,
Thank you for your feedback. We’re sorry to hear that your experience did not match your expectations, and we appreciate you bringing it to our attention.
While we are unable to change the outcome in this case, your feedback will be shared with our management team as part of our ongoing service reviews.
Kind regards
Onecom
Mani in support was really helpful
Mani in support was really helpful. However their portal is not very intuitive and does not work fully in Safari. They should mention this is the case. The service itself is excellent.
November 5, 2026
Unprompted review
Reply from Onecom
Hi, Thank you for your feedback. We're delighted to hear that Mani was able to provide such helpful support and assist you with your query. We also appreciate your comments regarding the portal and browser compatibility, as customer feedback helps us improve our services.
Thank you for choosing Onecom.
Best Regards,
Customer Operations Leadership Team.
It was wonderful to speak with Mani
It was wonderful to speak with a human being like Mani after trying to navigate the the website/app. Many thanks to Mani for sorting out my problem/case
November 4, 2026
Unprompted review
Reply from Onecom
Hi, Thank you for your feedback. We're delighted to hear that Mani was able to quickly resolve your query and provide the personal support you were looking for. We'll be sure to pass on your kind words and appreciation.
Best Regards,
Customer Operations Leadership Team.
Moksh was very helpful and explained…
Moksh was very helpful and explained very thin I needed to know🤗
November 4, 2026
Unprompted review
Reply from Onecom
Hi, Thank you for your feedback. We're delighted to hear that Moksh was able to provide helpful support and clearly explain everything you needed to know. We'll be sure to pass on your kind words and appreciation.
Best Regards,
Customer Operations Leadership Team.
What made my experience great this…morning
What made my experience great this morning was speaking to such a knowledgable, kind, patient, technical advisor. Sunep Ao.
From the beginning , although my knowledge is so basic he found ways of circumnavigating the problem without making me feel useless, and helping me to overcome any difficulties with his endless patience and achieving a good result. To me he is a shining star of a great employee and is a credit to One Com. A big thank you to Sunep from an elderly computer illiterate user.
November 4, 2026
Unprompted review
Reply from Onecom
Hi, Thank you for taking the time to share such wonderful feedback. We're delighted to hear that Sunep provided the patience, understanding, and technical expertise needed to help resolve your issue. Taking the time to support customers at their own pace and making complex issues easier to understand is something we value greatly.
Your kind words are truly appreciated, and we'll be sure to pass them on to Sunep. Thank you for choosing Onecom.
Best Regards,
Customer Operations Leadership Team.
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