I believe him, a few years ago, I was doing my 90 day report, I got accused of having a 25 day overstay in a raised voice, I said to him also in a raised voice, "I do not have a 25 day overstay" I then said to him in a normal voice while pointing at him, something like "I will go to ATM and get you 20.000 Baht, but you will be in trouble" he then said "follow me" I followed him upstairs, presumably to see his boss. He then said "wait here" he returned in about 1 min handed me my passport and said "you report back in 90 days", I took it back, without saying a word to him and just walked away.