Forms needed for the 30 day tourist visa extension

[slowlyman]

Last year I went to Jomtien for my 30 day extension with a 60 day tourist visa stamp. 

 

I had the TM7 & Photo. Got it checked by one of the guys at the copy shop. Got in side and was promptly turned back to fill out an additional form.  I can't remember what that additional form was.

 

What should I have with me when I go this year?

 

Also, is it possible to have one of the copy shop guys carry my application in for me. (for a fee) Last time I spent half the day inside, standing room only. Elbow to elbow with a bunch of surly, sweaty guys. There must be a better way.