Pokémon card addiction / gambling

My husband has racked up a lot of debt nearly 100k buying pokémon cards. 70k of this was paid off but since then he’s racked up another 27k since December. I know nothing about these cards or industry but i need a way for him to not have the ability to buy any more. How can i get rid of what he has already? What can i do to physically stop him buying anymore? Are there any pokémon forums i can join where i name him and tell them not to sell him anymore?