As someone staying in Thailand long-term you need to use the Phuket Town Immigration Office (the Patong Office is for short-term extensions, plus 90-day reports and certificates of residence). What you need to do needs to be done at the Phuket Town office.
The Phuket Immigration Volunteers have information available online on their website:
for Non-O Visa obtained in Thailand:
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for retirement extension of stay:
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You can go talk to the Phuket Immigration Volunteers in Phuket Town whenever the office is open. You can email questions to them online.
"We are available to help immigration customers at the Immigration main office in Phuket town every working day.
You can find us at room 204 (upstairs office)
Please visit us at room 204 or send a email to
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if you have any inquiries or need any other information." --
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In my experience, the PIV are available on the ground floor at the information desk. This means going through the main entrance on the ground floor on the side of the building opposite the drive-through. I believe this is Room 101.