all my ip are russian, it is hard to ban them by mistake.
Anyway, i tried one of my old accounts, relaxandhavefun and new ip, and i entered eurobattle. Then i tried marketisto account (same ip) cant. Tried relaxandhavefun again - refused to enter now.
So, at least 4 my accounts are banned for now: marketisto, sympa, relaxandhavefun, growthhacker