EDIT: My case was resolved after calling their costumer service. Yet I faced several difficulties as the terms and conditions were not clear on booking time (at least to me) and their website suffered several error when I attempted to log-in, reset password, send contact form and make payments. Also the automated email had some typos regarding the amount of deposit and the dates which confused us. The site definitely needs improvement since the error messages are several and important and this is a pity since the costumer service on the telephone were really helpful.
The deal offered through the website was very good, but we had the afrementioned difficulties until we had it.