BC.Game is accusing me so I require them to show evidences. I'm the victim of the accusation, so they should proof their point of view with evidences.
They omissed all the questions I was able to answer correctly. This is why I suggested to have this meeting with a 3rd party present to judge it.
I think you're misjudging the situation here. In a KYC procedure, you are obliged to prove that you are actually who you claim to be. If you fail to do so, the other party MUST refuse to approve the KYC - otherwise they may be liable to prosecution. No platform, not even an exchange, will take this risk. If the exchange/casino/... has even the slightest suspicion that someone else could be behind the account, they must refuse KYC approval.
The fact that BC.Game even gave you an extra round with a video call here is to their credit, not many other platforms would have done that.