I went back to Yanhee Hospital today for my electrolysis, they are the only place in Bangkok.
I rechecked the SRS price and it is 140,000 baht with 12 nights at the hospital. i also checked the BA with silocone implants and that was 80,000 baht. Its usd 1=36 baht
Yanhee is regarded as the top skin cosmetic hospital. An older hospital but still very good.
I know the locals use the srs service but dont know anyone who had it done there. Suggest you call them they have an international desk with english speakers.