To me it is very suspicious he comes here claiming he has been limited, when there are influencers and rich people on the internet/social media who are famous to show off their millionaire bets during important matches, for example during the football world clubs. What would be different from OP in such a context?
When comes to bets, the casino benefits from volume of bets and from the liquidity in their markets, so it would not make sense for them to limit OP (unless the casino itself had a stake and it is opposite to the one OP had).