These are the countries whose consulates here WILL issue you an "unable to travel due to covid-19" letter to take to the immigration office and request a 30 day extension:
Spain, Italy, China, South Korea, Sweden, Morocco, Austria, Turkey, Finland, Poland, Brazil, Ireland, Ukraine, Malaysia, Uruguay, USA, UK, Chile, Belgium, Philippines, Lithuania, The Netherlands, Mongolia, Taiwan, Germany, Macedonia, New Zealand, Singapore, South Africa, Malaysia, Portugal, Australia, Pakistan, Vietnam,
Check with your consulate IF you are from one of these countries..
This is current as of this morning :)
TLDR : Answer Summary
The post outlines a list of countries whose consulates in Thailand will issue letters confirming that applicants are unable to travel due to COVID-19, allowing them to request a 30-day visa extension. Users can inquire about obtaining this letter from their respective consulates. Several commenters confirm receiving such letters and share updates on different countries' statuses regarding the issuance of these letters.