One thing i will add. If your tm30 is registered as living with thai girlfriend or wife.. and you apply for an extension, in surin office, they ask for the others id card and baan book..just a thought.
.yep thats it..just make you copied everything.because they wont print anything for you.just incase a hotel or rental havnt reported you staying there and they ask where you stay before to b honest i dont t think they will ask have some proof of stay..just incase...each immigration officer seems to have there own rules.
Thats what they wanted 6 lol..proof of address i showed my girlfriends house book i believe when you fill in tm 30 you got to show them some proof of address to
I recently did my extension in chong chom..they wanted six passport pics for each document they had plus i had to show proof of address..and yes this was a 30day covid extension