Are you sure about the accusation you have for them? They're a known casino and one that's also reputable.
Yes, i' m a victim of them and their reputation comes mostly from advertising/marketing. They are licensed in CURACAO and in their thread with 526 pages is full with trouble posts.
Whether big or small amount, everybody knows that they're not going to put their reputation in jeopardy with such issues. There could be some misunderstanding with every gambler's issue.
But have you addressed that to them and have them answered your accusation?
I've read the above posts about what has happened to you. I guess it's on you and not on them.