My 20 year old son and his girlfriend have been members for one year

They have just returned from one of many trips for this company. They have spent thousands, and in return, made next to nothing. He is losing his nice car, and about to be evicted from their apt. He has an ulcer, and they just told me that Halloween is satanic and they will not be celebrating this year. Where did my son go? What do I do to help?