No they wouldn’t call out the blue and ask for 7k. He would have to be assessed for a detox or whatever it is he is attending for.
Good you did the welfare check that kept in safe and made sure he knows you are taking his words seriously even if he isn’t.
Boundaries is key to keeping sane! I’d say there is no life with an addict so unless they get better for themselves then we’re pretty much doing life solo anyway.