A cruel way is to harm others and not benefit themselves: if he is not allowed to return his credit card, then the bank will take back the house, and of course his credit will also cause bad things.
Personally, I don't support getting the original back.
The original match can control his property in another way, which is better. If you can't control it, spend all his money. How much does the mistress spend? The original match will cost twice or n times.
Original match, if he makes you emotionally unhappy, then please let his money make your life high quality. Let life make you perfect.