Quit Welfare Tax

[ube]

Hi, I m triyng to stop to pay the montly welfare tax fees because I have not thai staff and who told me I could do this, cancelled sucessfully his welfare social position about one year ago. The problem is that he did it in Koh Samui (Surathani province), I m doing this in Phuket and they don't accept this reason to quit. They said (and it looks reasonable) that until I get a salary I have to pay the social welfare fee. I ve a private insurance, but they don't care So, I don't understand, something valid in Surathani is not valid in Phuket?

My friend read on some goverment site (not remember which one), that without thai staff hired in the company, it is not compulsory to keep the position open with the welfare office.

Somebody out there can help to find the law article about it? so I can print it and show it at the office in Phuket.?

Thanks

Ube