As I believe you're well aware, verifying a bet prior to releasing them to the winner, to be sure that the winning is justified and does not utilizing anything malicious, is a common practice shared amongst casinos for big wins.
Yeah I’m aware on this method but not to the point of 5 months duration with KYC involved. I knew a lot of user that win much larger amount than the amount involved here that doesn’t encounter problem like this. That’s why I'm asking to the BC to disclose what’s their findings because they surely have or else they will not hold this user fund and ask for complicated KYC.
What makes me wonder and always wonder on case like this is why the need to undergo of KYC if the casino already concluded and find what makes the OP breach the ToS.
That's what I actually try to get to know better. OP initially said on the opening post that she... he... s/he played only recently, and that s/he
recently won big, where that's when the problem begin, implying it happened only a short time ago. Then come the added information of five and six months, with multiple attempt to resolve it to no avail. OP did not get into details on this, so we can't be sure about what actually transpires.
But, my reply to your post was actually focused and limited to the topic about why a casino [and their provider] conduct an investigation following a big bet and flagged the account upon finding signs of abuse.