If you make an appointment online the confirmation email requests / reminds you to bring the following 3 documents only
(1) Passport
(2) Previous notifications of staying over 90 days (if any)
(3) Completely filled in and signed notification form (TM.47)
Appointments :-
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and use this work around (as described by Tod) for the small glitch in the booking website
Can't overstate the ease of doing 90day with an appointment- this morning I was in/out in less than 10 min, avoiding a queue of easily 100 people. Note you still have to 'check-in ' at the counter in the car park before going to see the IO inside.
Just back from MTT from doing 90day report (online & app never seem to work for me) - had an appt for 10:10, arrived at 9.30 was seem immediately, left 5 min later.
There was a huge queue of people without appt's.
To avoid a multi hour wait and if you can (inside your reporting window) recommend you make an online appointment.
Did my extension at C-wattana ~10 days ago - made an appointment for 10am, arrived 9.40, as soon as I made my appointment known to the staff I was seen almost immediately by first officer for doc' checking. Extension was completed and all finished within an hour of arriving.