@Stephanie ******
to go through the process. On my first day, they only verified tm30 and attached a verification slip to my passport. Then I had to come back on the last day on which I was allowed to see the IO. They also kept the passport for 1 day so I had to go again the next day to collect it. From what I understand, jomtien immigration is over worked and takes a much longer time than say - krabi immigration.
Bottom line is that my visa expired on 15th and I got my passport back on 16th.