I have not checked their Terms and Conditions about why they would like KYC to be sent before closing an account
BCGAME asked him to complete KYC verification, but he couldn't finish it. So, he asked them to lock his account and give him the balance, which led to the rejection. If he had asked to close his account and withdraw the balance before his account was flagged, it would have been different. But because they asked for KYC before his request, he'd have to comply with it.
I do not know about what happened in your case therefore can you explain if they wrote to you to explain why they declined your documents?
He used his "driving license," which, according to live support, isn't accepted by BCGAME as a valid form of identification. This isn't just specific to his account; it applies to all accounts created. You can't use a permit or driving license for KYC; you'll need to provide a passport or a valid government issued ID, instead but @factor280 has none and thats what is dragging his case.