Ok I'm fairly new at this visa thing so just bear with me ok

I came here on a non o 90 day marriage visa last year

Then went to Laos before it expired and applied and received

A non 0 Ed visa which is due to expire the 25 of this month

I know I can extend it but where

to go div 1 or 2 as I am I'm bangkok

Living in rom Klao going to Kasem Bundit university full time

5 days a week 4 hours a day taking thai for forigners BA 4 year program

I believe I need fill out form TM 7 pay the 1900 baht

What else do I need bring and where to go

I am U.S. citizen retired U.S. navy

Thanks in advance

You have a non-imm 'ED' visa (not 'O'). You can only go to Chaengwattana.

The university should have an office or person able to provide you the correct paperwork, that is just

Letter of confirmation and request for a temporary stay, issued by the educational institution, which shows detailed information about the applicant’s years of education, level of curriculum, and educational achievement