Is it possible you could try to make a very small transaction using the card? That way it will clear up whether your existing balance is still present or not. There can be no justification for the way CoinPayCard.net have conducted themselves and the flag as well as negative trust against them are a reflection of that but it is important to know about existing balances. If they are still available to spend it means they have not been stolen and it means though an exit scam looks probable it might not be the only explanation here.