I rarely use 2fa because I fear something like that could happen, I prefer strong passwords alone.

In this case I think coinpot's admin is not required to help. The problem is that it's your responsability to keep 2fa details secure. If an admin was cooperative on bypassing it, he would cancel the intrinsic security that 2fa offers. He could also, by mistake and without knowing it, cooperate with a malevolent user that wanted to steal your account.

Usually when you first add 2fa service on a website you're asked to backup a security/secret code that would help you restore 2fa in case of format/resets, did you do it?