I will not be happy if I am told this by the customer service of a casino when they know that it is something serious, something as serious as money. I will have the feeling that as a customer, my issue is not considered important and not given the attention it should get. Also since the reply is "sometimes it takes more than even 6 months", that is  I will also conclude that this is a regular problem that they always face, and I am not the only one they have had that issue with. 6 months is too long for me.