KAST Reviews 

I am having a really hard time with you

I am supposed to receive a 24k transaction, and it has been pending for a week

I have provided everything the support team is asking and asked for a meeting if it is not enough, yet nothing has been solved

all I see "we are working on your case"
this is unacceptable and unprofessional

I need a solution not more delays

Avoid Kast. They blocked my account with $5k in it, and started asking for excessive amount of invasive personal information just to regain access to MY money. they kept my $5k for themselves. Avoid custodial cards (they can just keep your money). look into non-custodial cards.
Unblock my account and let me withdraw MY money. i no longer want to continue using your services.

Don’t choose this bank. First time encountering SUCH bad support team. EXTREMELY slow, unexperienced, don’t know how their own app works.

This platform blocked my account for no reason on Aug 15th when funds arrived from my own #Trad-Overn brokerage. Support made me wait forever, asked for the official payment receipt and now it's been days since I submitted it with zero replies. Stop ghosting me and unlock my funds.

UPDATE — 28 days later, my rewards balance is still frozen.

Kast has repeatedly told me the issue is being reviewed, but has never actually resolved it. Most recently, they simply sent me the same copy-and-paste response I had already received a week earlier, again addressing referral rewards instead of the cashback I earned from my own purchases.

What makes this particularly ridiculous is that Kast itself offered me an upgrade to the Premium tier, which gives 2% cashback instead of the standard 1.5% — cashback that I cannot actually use because my entire rewards balance has been frozen for 28 days. What's the point of offering me 2% cashback if you are going to prevent me from accessing or using the cashback I earn?

I originally wrote this review after already waiting over a week for Kast to resolve my issue. I am now 28 days into this, and the problem is still exactly where it was: my rewards balance remains frozen, including the cashback I have earned from my own everyday purchases using my Kast card.

What makes this even more frustrating is that Kast has now made it abundantly clear that they are simply not interested in resolving the actual issue.

Their explanation is that they detected activity that allegedly does not comply with their referral program guidelines, and therefore the associated rewards cannot be issued.

Fine. I have never disputed that. I never invited my 2 friends because of the rewards; in fact, they did not even complete the tasks besides the first one, which gives you 20 quid (sad they dispute this, yes, quite pathetic!).

I have repeatedly told them that I do not care about the referral rewards. If they believe those rewards are invalid, remove them. I genuinely don't care.

What I have been asking for, for almost a month, is extremely simple:

Remove whatever referral rewards you consider ineligible and unfreeze the cashback I earned from my own purchases.

Instead, they have kept my entire rewards balance frozen.

And today, after I asked AGAIN whether they were ever actually going to fix the issue , they sent me the exact same copy-and-paste response they had already sent me a week earlier, AGAIN talking about the referral program and completely failing to address the cashback earned through my own purchases. And AGAIN stopped replying all together to my video and screenshot evidence.

At one point, they even responded to me about another customer's completely unrelated issue.

This isn't customer service. It's an automated loop with humans occasionally copy-pasting messages into it.

The concierge handling my case previously told me the issue would take 24–48 hours to resolve. Almost a month later, I am still chasing people for a basic answer. Nobody appears willing to take ownership of the case, and I am continuously passed from one person or department to another.

The most frustrating part is that I genuinely wanted Kast to work. I use the card regularly for my everyday spending, and the friends I referred were also genuinely interested in using it.

But when a company can offer you a Premium tier promising 2% cashback, allow you to accumulate that cashback through your own purchases, and then freeze the entire rewards balance for almost a month without providing an actual resolution, it becomes very difficult to trust that company with your money.

If Kast does not want to honor certain referral rewards, that's their decision. But that does not explain why cashback earned from my own purchases is still frozen a month later.

I am no longer asking for anything complicated.

Unfreeze my legitimate cashback, or clearly explain why you are refusing to do so.

Almost one month of waiting, chasing, explaining the same thing over and over, and receiving copy-and-paste answers is completely unacceptable.

At this point, I am simply exhausted with this company and I advice others to be very careful with it.

Worst support Team i ever Saw, They stopped replying mark my ticket closed.
I attempted to make a single purchase on Google Play Store, which was declined due to a minor balance shortfall (a difference of just a few cents) (their transaction fees are above the sky). Upon checking my KAST transaction history, I discovered that I was charged $1.00 ($0.50 twice) for what your system logged as two separate declined transactions .

Customer support previously stated that two transactions occurred they wont help and they ghosted me, but I only authorized and initiated one single attempt. It is logically and technically impossible for a user to complete two distinct transaction attempts within a single minute on Google Play.

Horrible experience, they strike me with a 0.5 usd fee for declined transaction which i didnt even know, so basically this is absurd no bank does this, if you forget about your account your left with debt, not just that, i didnt even know i had negative balance i saw a f* 0 on the balance i added money, and it didnt get added, i contacted support thinking this could easily be resolved and they strike me with having negative baalnce even tho the app showed clearly 0usd, this js wild and no matter what, i would never recommend this app no matter what, please just use a normal these companies are just scammers

They have the worst support team I've ever seen!
You can't even call them a support team, they're punch of useless people.
I'd a problem while signing into my account and they put it under review, then asked me for many things to do and answer, and I did.
issue happened on 04 Aug, 2026. after that they ignored the issue and all my emails till now!
Whenever I send a new email asking for reply or updates they merge the email with last request and close it automatically without even giving a reason!
I've frozen balance in my account, and they don't let me withdraw it or at least they make a refund for the received payments!
Don't think to use their service ever because you will lose your funds.

the best service

⭐ 1/5 — Account Frozen, Cashback Withheld, No Real Support

I had been one of KAST’s highest-spending and most active customers, generating a significant amount of card volume and accumulating substantial cashback.

Then, without any clear explanation, KAST froze my account.

What makes the situation unacceptable is what happened afterward:

* I was not given a proper reason for the account restriction.
* I had a significant amount of cashback outstanding.
* I have repeatedly contacted support asking for clarification and resolution.
* My case has still not been properly addressed.
* I have been told the decision cannot be appealed, while my outstanding cashback remains unresolved.

If a company offers cashback as an incentive for customers to spend through its platform, it should also have a clear and transparent process for what happens to earned cashback when an account is restricted.

I am not asking for special treatment. I am asking KAST to provide a clear explanation for the account closure/restriction and to settle any cashback that I legitimately earned before the restriction.

For a financial product handling significant customer transaction volume, the current level of communication and transparency is extremely disappointing.

I will update this review if KAST contacts me, properly investigates the case, and resolves the outstanding cashback.

Extremely disappointing experience. The platform completely fails when it comes to reliability and customer service. My earned referral rewards have been frozen with zero transparency. It took multiple persistent follow-ups and public complaints just to get a basic acknowledgment from support regarding Tickets #525171 / #538970, while the actual payout remains unresolved. A platform that holds users' earned rewards hostage and completely ignores support tickets until backed into a corner cannot be trusted. Proceed with caution."

Apps is very smooth its really help us to offramp as crypto native guy and its was very good experience, keep building

Easy to use, savings account that pay similar to government bonds or even more. Card that's easy to use, accepted anywhere, with rewards and minimal KYC. Love this app

My experience with KAST has been really positive. The service is easy to use, the application process is straightforward, and everything feels smooth and well-designed. I especially appreciate the responsive customer service and how simple it is to manage everything. Overall, KAST provides a great user experience and I would definitely recommend it to others.

really like how easy it is to spend my stables.

clean app, smooth payments + team keeps improving the product and adding new benefits + cashback is a great bonus too.

really like this app and definitely recommend giving it a try.

Been using KAST for 2y now, started just for small payments to avoid selling and off-ramping my crypto to quickly completely replacing my traditional banking system. From receiving my salary to paying everything with my Founders Card and stacking generous cashback since day one to hopefully very soon owning part of the company with my cashback share with practically zero issues i can say giving KAST a try was easily one of the best decisions in my life.

I have been using KAST since 2025 without any issue or problem what i love most is their active customer support, I did recommend it for everyone

Very god product. Work god, i hoppe we have a nice air drop