Sin Spins Casino - Non Payment Of £90

I won £90 on the 17th September and after sending in my ID it was processed on the 21st September, i still haven't received this payment. I have contacted them on a number of times, first being told that it was processed on the 28th and should be in my bank within a few days. Then i was told that there was a problem with their credit card company they use which has resulted in late payments. It has been almost three weeks and still no payment has been received. I have also emailed them asking for them to make a fresh transaction of £90 and for them then to trace up what happened to the original transaction without a reply. I have tried and tried to sort this out between me and Sin Spins but have been left with no choice but to write a complaint on here.