I think you are correct. For some, like myself, the doctor signed the certificate after a few basic checks. Other doctors will order a whole set of tests.
My memory of going to the doctor to get my certificate was around elephantitus. He said "I have been in general practice for 40 years and never seen a single case. I am going to assume you don't have it." 😂😂
I understand and as such put a plan together that he would meet Jomtien wacky rule. Now he is going to extend his visa exempt stamp by 30 days in the final 7 days of that stamp, another Jomtien special rule.
i had a report from a friend yesterday who converting from Visa Exempt to Non Immigrant O in Jomtien. He was told the funds need to be seasoned for 3 months.
great call. I didn't do my bank account that I hold my visa money in and it delayed me getting the paperwork for my next visa extension. I managed in the end but it would of been easier if I had updated when I got my new passport. 😊
As others have said all immigration offices are different. If you are going to be applying at one of the bigger offices (Bangkok, Pattaya, Phuket Chaing Mai etc.) then you may be able to get better advice from this group.
Sounds like you have done the correct thing by getting the 800k into your bank account as early as possible. All the other requirements are normally easy to obtain.