Mostly the case BK8 we are seeing is just a simple "Sportbet" activity like arbitrage or abusing some promotion. Then, BK8 refunds the deposit and refuses the service to them. Now, we seeing the case "Fraud KYC" these one the first and only ones we see in your case. Based of the explanation, I think I prefer to believe on the "BK8" side since they are really want to show the proof because is under NDA.
Maybe DT-1 member from Bitcointalk can verify the data, If they are true or not. On these specially case, I more prefer trusted the word from them since you have a really complicated explanation since the beginning.