How can I get a TM30 registration easily in Bangkok for my COVID extension?

May I ask why you have chose to seek a COVID extension in Bangkok rather than where you got your current one on Koh Phan-gan island?

Sadly, this is not a hotel advice group. You’re better off asking on a Bangkok expat group.

Thank you.

A TM30 will be filed online by a hotel in Bangkok when you check in. You can ask for a screen print to show Thai Immigration.

You can apply for a COVID extension...but there is no guarantee that it will be approved.

Apply before your current permission to stay date expires

But not later than January 25th

Go before that date as the extension - if granted - is from your current COVID extension ending date.

The COVID extension is not guaranteed. In fact we have reports of this happening in recent weeks:

...of extension being denied

...given 7 days to depart Thailand

...granting less than 60 days

...requesting to see a confirmed booked flight out of Thailand.

And/Or

...a letter from your home country Embassy is needed requesting the extension

Be sure that you have a TM30 address registration filed where you are living.

And be prepared to answer the question... Why are you still in Thailand?

The COVID extension is not guaranteed...and as you stated this is not your first COVID extension request.

If you have been in Thailand for nearly a year using many extensions...Including multiple COVID extensions....

Then the newly published Thai Immigration Order should be of interest to you.

The Immigration Officers have been instructed to be stricter in granting the COVID extensions.

And recent reports of less than 60 days are reported granted...even the 7 days to leave Thailand stamp.

Suggest you have a Plan B in mind.

Read the last five lines on right column of the newly issued Thai Immigration Order....

Good Luck

They're all legally required to do it. I think Bangkok likely has higher compliance than the provinces.