Ching Chang Doesnt require 6 mths merely current balance. Employer letter, be creative if you have to, be employed by someone doing contract work and you have a job to come back to. Stop saying no to people and offer potential solutions.
Hand written. And signed. I didn't have it and had to get it emailed to photocopy shop. Prei Nokor Hostel has some private rooms for about 800thb. Also I used Grab bikes when I had wifi. Cheap!
Ok you also need a letter from your wife stating her name, thai id, your name and passport number and that you are married. also there is a little photocopy shop to the left of the embassy if your standing in front of it. around corner.