As was the case with us:
Tried to pay with Hetzner alabakovski goldovym MasterCard — have failed.
Call the Bank gave the answer to the question — transaction goldovym cards must be supported by CVC.
Hetzner to store CVC is not entitled under the law.
The problem was solved by ordering a virtual MasterCard are, for holders of gold is free, and use it to make payments to Hetzner.
Unfortunately we can only accept credit cards which can be charged without saving
— your case is similar to ours. Order the card class below and pay Hetzner with her.