Well... that worked. I've got the confirmation @gmail. But it is broken or something. When i moved by the link in the letter and log in with the new account  - it is still locked. I see the message that says "A token was sent..." and Update Account button is unreachable.
WTF

and i've got another problem. i tried to change PIN on the main account. And the letter was sent... to the mailbox that is unreacheble for this letters. So now i can't cashout anyway. My bad! But can we make something manually maybe?