forgive me for my ignorance, but in a case where this person is the bettor and you are the bookmaker, you should contact the Ukrainian football federation or the governing bodies of those leagues in which this guy placed bets, report that these games are fixed and when the highest bodies of these federations prove that they really are fixed games and that the bettor is also part of the scheme, Is when you could punish the bettor, but in this case you are already punishing the player even though you have not shown proof that The governing bodies of these leagues in which he has placed bets have proven that he is involved in fixed games and that all the games he has bet on are fixed

because I keep asking myself the following: the user is Ukrainian, but according to you he was also involved in fixed Brazilian football matches, in Brazil they speak Portuguese, so how would he be able to understand Portuguese and how he combined with the football players from brazil involved in the fixed game scheme? Is something very strange. I'm not here to defend this Ukrainian guy, I just think that your proof that this guy is involved in fixed matches should come from the police and the highest football bodies in those leagues. what you have are suspicions