What is the process for applying for a first visa extension at Chaengwattana using monthly deposits into a Thai bank account?

I've done 2 extensions of a spouse visa, most of the paperwork needed is the same except the obvious stuff. Money is less. If you have all the right income and documents,you'll be fine.Bring all.originals and signed copies of everything. Dont give them an excuse to scrutinize you.

Dress properly, be calm and smile. Seems to go a long way with them.

Also update your bankbook and get front and last pages photocopied the same day you apply. Most of the banks are downstairs at immigration. Do it while you're in queue.