Essentially if you just take your passport and ask for help, they'll be more than happy to do so. I can't stress enough how nice and helpful they were today.
No need for flight or ticket info. You'll need the usual copies of your visa, TM30, passport photo page (or they can do them there for you if you want, think it was 2 baht a copy) and a photo (again, think they can do that there but I took one).
FWIW I got a re-entry permit at the new Central Festival immigration office in Chiang Mai just today and it was a piece of cake. Very friendly staff helped fill out the forms, 1000 baht and done in about 5 minutes. Would recommend!
Doubt it, you're going from a long term visa to another long term visa. The people getting hassle were mostly using tourist visas and covid extensions over and over
Friend had a weird situation at Phang-nga immigration yesterday. Said covid extensions weren’t a thing anymore and was given 30 days only (even though they had already had their 30 day standard extension). Looking at the stamp it seems like a standard covid extension stamp, but for only 30 days. Same happened to a friend in Bangkok, but another friend who went at the same time in Bangkok got 60 days…
This happened to me twice before, it's a bit annoying! They've been able to sort mine out at the local immigration office in the past, but that was a while ago. The second time I caught it before I left the booth at the airport.