If you are done reading terms and condition and everything is clear to you,
the chance of resolving your issue can be done in a much quicker way. As you can provide your evidence
with a clear knowledge with certain rules the support will be able to fix your concern without a delay.
But in some cases, if the house suspects you in doing something the chance that delay may happen as
review process needs to undergo.
I think the problem most of the time is that gamblers do not give the casinos enough time to check these out. I mean it is clear that we are talking about something that is a bit dangerous for the casino if they do no reviews at all when they are suspicious of something. So, give them time and let them work on it and they will eventually do a lot better and they will give you your money back if all is well.
But, you can't expect them do it in a day or two, you need to give them as much time as possible, whatever they need, if you are fine and broke no rules then you should be fine and they would be getting back to you with no problems at all. This period takes time, let it happen and you will be fine.