Very strange. Used it 8 times already. Only one time it took 2,5 hours because of a truckload of imm. with an Agent. Did not see complaints. Which group ?
I think what Tony says, is the best way. My last one was completely different from the two before. Should you need it for opening a bank account, they put that text in it. At least at Korat imm. The last one I needed, 3 months ago, was for my 5 year drivers licence. It was 500ā¸ŋ if you want it on the spot and free if you could wait for a week or so.