What should I do if I lost my TM6 document before my COVID extension appointment at immigration in Thailand?

If you have lost your TM6 document, it may not necessarily be an issue when applying for your COVID extension, as experiences can vary by immigration office. Some users have reported that they were able to obtain a new TM6 by visiting the local police station to file a report and then bringing that report to the immigration office. Others shared that they were allowed to proceed with their extensions without the TM6. It is advisable to prepare a police report and consult with the immigration office where you will be submitting your application.