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