How can an addict truly stop using drugs who claims they want to stop but just seem stuck in the weekly habit?

PLEASE NO WISE *** ANSWERS LIKE I'VE SEEN BEFORE ON QUESTIONS LIKE THESE.TRYING TO SAVE A GOOD PERSONS LIFE HERE!! They binge every payday and spend most of ther money.Fortunately they end it at that and don't steal.They have been to multiple rehabs of varying types and jail several times.They say they really do want to stop and I believe them but they have grown weary of rehabs and fortunately have stayed out of legal trouble for quite sometime.They also have had some success with short term and semi-long term sobriety in the past but do not wish to go the rehab route again....They've learned how to get through those places with minimum problems and prob receiving minimal help.They know enough to be a counselor themselves!!!! They are not adverse to NA or AA Meetings but need to break the habiTual cycle first.