I just did a simple tourist visa transfer into a new Passport about two months ago. What a headache. Thailand is the worst place I have ever visited hands down.
Went threw Laos did the paperwork for a two month visa, that was a hassle but doable.
Applied for a new US Passport threw the mail.. Perfect no problems with the US embassy.
Was in Khon Kean and went to the immigration office there to transfer the visa... NOPE, have to go back to the original office in Nong Khai, Had to travel back to the office where the visa was issued.
When there . I had both the new Passport and the old one with the stamp. And I was talking to the same lady that gave me the visa. She said NOPE, I had to have a letter from the US embassy stating I was who I said I was and the visa was just issued... Hahahaha,,
Took me three weeks for a new Passport, and three weeks for the tourist visa transfer...
To top it off I had all the paperwork I had filled out for my new passport and the paperwork when the new visa arrived... NOPE
Thailand joke of the day.