Yep. Always been that way. For their own selfish reasons the "Thai Tax Experts" are trying to entice gullible expats into paying a lot of money for unnecessary advice! 👍
You really believe every foreigner in Thailand behaves with the utmost of honesty and integrity? Even though many are paying bribes to immigration officers, police officers etc. Are you serious? Come on! Are you new in Thailand?
We live in a "I'm all right Jack" world. People do what's best for them. Pretty sure the business will retain an "admin fee", so they're making money for nothing. If they don't have such a fee, it's their own stupid fault! 👍👍