Hi,I come into Samui on a tourist visa,get the 90 day ext at maenam, but I would like to know how to go about getting the next 30days? So It will then give me 120days in thailand. South africa thai immigration says, you have to go over the border, AND FLY BACK IN. Cant come in via car etc. Otherwise they only give you 15days? Because we wanted to go to Rayong with a friend for a few days,and drive back, as we went in. Thx