2 days is not too much time. Many a gambling site may take.m more rhen seven days for withdrawal if they have any ddoubt abiut the transaction or anything about the account of a gambler. They may disable account if there is any rule break. Better contact with them and wait for the solution.⁶
Maybe they could be doing manual withdrawal where some withdrawal has to be on pending while the already awaiting transactions get approved, and of course two days is not much but as a gambler whenever your transaction keeps pending you wouldn't be happy for any day till the transaction get confirmed to your address or maybe you have seen that withdrawal is successfully confirm.
I don't know how long OP has been using this casino but I think he should be using a casino with instant withdrawal than those that would wait for manual approval before they could get their rewards from the gambling site.