After few days i made a bet in sportsbook which i won so my balance went to 1800$ (i bet it also on other bookmakers), i wanted to continue betting but i didnt find nothing interested on site so
~snip~
After few days i contacted them again and they said account was closed and balance extracted. Reason? They recieved information regarding tampering with the results of fraud. Which is definitely not true, it was normal game, paid with every other bookmaker.
Maybe it was a normal bet and other betting site has considered it as a winning bet. But your betting activity won't be considered as normal by the odds provider if you place bets on the same event on multiple sportsbook. What are the other betting sites where you had placed your bets?