Be honest, I think anyone worrying about visa agents in Pattaya is worrying about nothing. If they tried to take all the visa agents down there that have been operating there for say the last 20 years the entire thai prison system would be full of immigration officials, MP's and other 'colaborators) and Pattaya 75% empty of retirees (I state that as of about 20 of the retirees i know, all bar one uses an agent).