Process for 30 day TR extension at hatyai immigration. I understand each provincial procedure may vary, this may be of help to others.Tried unsuccessfully to phone ahead for information, no answer. Arrived in person with thai fiance, there were about three people waiting, the place seemed deserted, we were informed no apptms available this week, directed to use QR code via Line app. to schedule a appointment for next week. To lodge documents ahead of apptm via line. Is this the usual process? Im curious.