I had a similar problem, followed by getting blocked for using an IP owned by a mobile telecom, followed by being unable to credit the account via a bank transfer. At each step trying to explain my situation to support.

Then it worked, and I've had no problems since. I'm concerned about them failing to charge my virtual debit card some month in the future and losing data, but it hasn't happened yet.

If there was anything else nearly as cheap, or if it wasn't for personal use, I probably would have given up and used another service.