Due to a number of spammy registrations we have blocked registrations using email addresses from certain domains, including gmail.com and mail.ru. If you are a genuine customer please use an alternate email address. If this is not possible please contact us for assistance, we can create an account for you.
We are sorry if this is a nuisance for you - it is for us as well. It is the lack of care about abuse of their systems by some email providers that makes this necessary. We suggest that you contact them and point this out.