It sounds now like even for something so simple as a 90 day report all immigration around the country have a different criteria...I thought at first it was the only procedure that was uniform.
My wife was doing a Tm 30 at the same time for the son in law who's over for a visit from the UK...and she was 72 hours over the deadline so I didn't want to push my luck lol
New man in Mahasarakham wanted copies of everything I mentioned above.. I went today with just my passport (as usual) I thought it was me getting forgetful...only saving grace was they let me use the photocopying machine in their office with a donation to the tip jar....