Guys, I had to delete all the correspondence with them, because they began to threaten me with complete blocking and loss of my money!
It turned out that they had such a point of the rules
The Customer guarantees not to disclose any information, obtained from the Service support operator, in any channels of communication. Violation of this rule will lead to the account termination without refunding of the remaining balance of the account.
that's incredibly shady! i've never seen anything like that in a TOS before. account termination is one thing perhaps, but threatening to steal the user's money?
i was thinking about using them to convert some bitsend at some point. maybe i'll avoid that now.