You can try to log in with My.Games game center client instead of Steam
Try writing ticket to support, they don't give a f***, but maybe they do care about billing money
To play on sub server I always visit Allods main page, on the right I press
Manual Top Out : buy 500 crystals with credit card
Become a subscriber : pay
it will allow your current account to play on sub-server for 30 days
If you fail to solve it, make chargeback. Don't blame yourself. This game
with outdated launchers, archaic forum like in the 90s, non - esistent support is solely run by dozen of dedicated players. Good luck