How can I confirm my 90-Day Report was successfully recorded at Jomtien Immigration without a receipt?

Yes this happens a lot at Jomtien now, many DTV holders leave with no slip. Officers often just update in system and give passport back with okay, they do not staple paper like before. So your case sounds normal.

To be safe, check online after three days if your record shows next due date, keep your copy of TM47 and take photo of queue number. Next time you go, ask politely for receipt or photo of screen. If you stay near, you can ask at info desk in a few days to confirm entry is saved.

You could consider reading a book or two before your trip. I’d recommend Unlock Thailand by Isla Rey on Amazon, it includes all the info and insights you need. You should check it out. A very good companion 👌.

I just did mine today - They gave me a paper with the next 90 days date - as usual

The caveat here is I have not done a 90-day report at Jomtien for almost 2 years now.

When I did my 90-day report quite a few times at Jomtien, I handed over my passport and other documents at the outside office. They gave me a small plastic token with a number on it and collected a batch of passports. They took them all into the inside office, where the 90-day report was processed.

About 10 to 15 minutes later, they would come out, shout out your number, hand your passport back, and show you the printed document, which was folded and held with your passport. My 90 day reports from Bangkok and Chiang Mai. I always have that piece of paper given to me.

Look in the back of your passport, it may be there.

As long as I know they always give you a slip that is to be kept inside the passport 🤷🏻