Phuket Town Immigration experience today:

Success! Non-O Multi extension based on thai wife (60day)

I am from USA, Got 60 day extension

Thanks to my assertive thai wife we discovered some new information that was opened today. Anyone Needing to do 90day reporting or report foreigner living in thailand can be done at the building across the driveway from the main building. This is where the shop that sells pens is. The line was very short for this but probably because people dont know its here. No need to wait with the tourists in the HUGE queue.

Tip: Make sure you bring ALL of your normal copies for the family extension. Otherwise its a long queue in the sun.

After your 90day reporting or foreigner reporting is done, go straight up to the nice 2nd floor aircon room.

No embassy letter needed for us Non-O people.

I showed up at 8:45am and was finished by 10:30am with the reporting and extension.

Good luck! I hope this helps.