To confirm and clarify as at 13 May 2024:
โFor first-time requests of a 90-day notification in each country visit, in-person presentation at the immigration office is required.โ
TLDR : Answer Summary
As of May 13, 2024, first-time requests for a 90-day notification in Thailand require an in-person visit to the immigration office. Numerous users shared their experiences confirming this requirement, with some mentioning that online applications can lead to rejection, often due to discrepancies with the TM30 form. Comments highlight frustrations with the process, suggesting that using an agent may alleviate the need for in-person visits.