Btw. im thinking about something that could happen. What if somebody use public Wi-Fi and sign into Betfury? He could be banned in the future if somebody would sign into Betfury from the same network. So you may end up getting banned unfairly, if their system detect such a cases as a multi account
I am not using public wi-fi for anything especially when i deal with crypto and i don't understand why someone would do that, but if that's the case, and your friend used public wi-fi, it should be relatively easy to prove to whom that ip belongs to.