We are coming to an end of our 60 day tourist exemption and want to apply for the 30 day extension. We are in Bangkok and am seeing different immigration offices listed. Can someone please confirm which office we need to go to? And also any extra suggestions you may have. We know we need copies of our passport and visa stamp, 1900thb each and a recent passport photo. Also can we apply 10 days prior to the end of our exemption? Thanks for your help! Much appreciated!