I also had my O visa, bank, and driver's license done through an agency. I've only posted what immigration requires. Is that so difficult to understand?
Then make a separate post where you can explain that. And don't post so many messages here that it's bad. Especially since I never said anything in the post about having to do it that way. Once again, especially for you: that they meet the requirements set by immigration if you want to change your visa as stated above.
You can also write a lot and only get to the point at the end. It's incomprehensible to me. It's nice for them if things are going so well. Whether it's all legal is another question. Why don't they make a business out of it? Let's get to the end. You write a lot but don't provide any concrete examples. I only posted the immigration requirements for Khao Lak here to show others what is required. They offer nothing except their own claims.
On the one hand, you want to save money and invest it wisely, and on the other hand, you're paying ten times as much for a service you could do yourself. That doesn't make sense.