So the slow drip feed of anonymous bros spreading negative ideas about the DTV (special rooms at immigration, my brother’s sister’s cat works for immigration and said that it’s all going to change) seems to have taken hold and a few people seem to have made their minds up that it’s going to change.
Mainly, I suspect, due to their original idea that no one should get a five year visa for a couple of dentist appointments. This original seed of doubt has been effectively watered by the anonymous bros and agents trying to convince people to quickly book their services.
an extension of your current stay involves going to an immigration office inside Thailand and providing the documentation they need. Every office has slightly different requirements so you should go there before you need to to find out what they are.
A 90 day report is a requirement to report the fact to the immigration office you registered your TM30 with that you have stayed in the country for 90 consecutive days. The window for reporting is two weeks before and one week after the due date. The due date is 89 days after your last entry to the country.
What you did is neither an extension, a renewal, or a 90 day report. You have a DTV which is a multiple entry visa. Every time you enter the country during the validity of your visa, you get stamped in for 180 days. That's what you just did.
You left and came back. That's all.
You can't prolong the current validity of your visa. You can get an extension of your current permission to stay (you didn't do that) or you can, with a multiple entry visa, leave and re-enter to get another permission to stay. You did that.
Your next 90 day report is due 89 days after the date of your latest entry.
Anonymous participant And now you know. Yours clearly isn’t ’reflected’ anywhere so you’ll have to follow the instructions you were given, and carry a printed version if your visa with you.