Had a similar stuck deposit once with another book - if your bank confirms the money landed at the receiver, get that statement line with the UTR/ref number and keep pasting it to their support every time they ask. Payment provider traces are slow but if the funds genuinely arrived they do eventually credit it. Don't make a fresh deposit to 'push' the old one through, that only complicates the trace.
My favorite provider is Play’n GO. One of my favorite games from them is Book of Dead, it’s a classic and still holds up really well. I’d also go with No Limit City for games like Mental and Relax Gaming, especially for Money Train 2.
@lucks_maximus that's rough - expiring a bonus 15-20 minutes before midnight with no countdown is exactly the detail you only find out the hard way. formerPokerpro has a point about trying support again on a weekday when the senior team is in - some casinos reinstate on goodwill once you point out there was no timer anywhere. Either way, posting the warning here does everyone a favor.