I believe the 500k needs to be in the accounts for at least 3 months and I also am curious if they are looking at salary amounts. They may be rejecting on monthly salary amounts. I've noticed people that are around the $2,500 a month mark have been getting rejected. I have no idea if it's related but it would be interesting to see how many rejections are in that range for monthly income.
Think of it this way, you're going to have to provide most of the paperwork and the agent is only going to review it and then you have to go somewhere to submit it. So you're really paying him a thousand-year-old to review your own documents that you are creating.
As for the school, you're probably better off picking something that you like and will actually do. That way if immigration ever questions you you will have proper answers.
I find the post humorous, not because of the context but rather the content, specifically the sentiment that the OP isn't gullible and can spot a scam a mile away. I'm pretty sure everyone that has ever been scammed in personal or business dealings felt the same way until they didn't....
I would suggest a retirement Visa. Any visa that requires an outside source such as an employer or spouse can potentially be problematic in the future. There's no reason that getting a Visa that is only reliant on you should be a problem.... Just keep up with your reporting.
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.