UPDATE: After I wrote off BC.game as a scam and threw away my balance since they blocked my withdrawal, BC game have now changed my verification status to approved (without any further nudging from me.....)
This also means that my initial verification submission was perfectly fine and wrongly blocked since I haven't resubmitted anything...........
Did they just delay my withdrawal to encourage me to throw away the balance..............................................
I believe they never try to delay it. They just solved it now after they got enough investigation.
There is no value to delay your withdraw, they must be very aware that it only brings a problem. If there is no something suspicious with your verification, it should easily be accepted.