Can I Report My 90-Day Visa Check by Post If I've Never Reported In Person?

In Bangkok you need to have the letter post marked 14 days before your due date. They will still process the report if it's after that but they will stamp on your receipt "follow the rules" 　

You need to send copies of

the data page of your passport,

your current extension,

your current entry stamp

your TM6 departure card

your TM30 receipt

AND a filled out TM47 application for a 90 day report

Also have a self addressed stamped envelope inside the packet too

Send it EMS to the immigration office so you can track it and they will send back your copies and the 90 day report receipt

okay, you're on a yearly extension of stay based on being over 50 (retirement) <- which you got from the immigration office AND you hold a multiple re-entry permit <- which you also got from the immigration office.

You've never done a 90 day report before. Now that you can't leave your 90 day report is due 89 days from the date you last entered the country.

Depending on the immigration office you can do your 90 day report by mail.

Do it soon, do not wait until there is a 24 hour curfew.

What kind of Stay do you have as you suddenly realise that you have to start to do 90 days reports?