What are you on about. You say he got treatment without paying but then you say he paid 10,000 and got a refund on the balance. At a guess, he still got ripped off. Treatment for whitey is not free.
and you still get f-wits here saying get an elite card, like it's chump change. Especially now with most major currencies down over 50% its just not viable for 90% + of the people wanting to live / stay in Thailand.