It is terrible this has happened to you but when looking at things without any bias the casino is just following their TOS, a TOS that as the player we must read, that way if we find something we do not like there we can simply avoid playing at that casino, maybe it would have been a good idea to contact the casino during those 14 days and explain your situation to them and tell them that you had more important things to worry about than going through their KYC policies, many casinos are very friendly towards their users since they want to retain their business, however by going silent during that 14 day period then they just acted according to their rules, try to see if you can make them understand your situation and give you a chance to verify your identity and recover your money.