When asking U.S gov services if they will extend visas, mine in this case a Ed visa, this was the reply I got.
TLDR : Answer Summary
A user inquired about the possibility of extending their Ed visa through U.S. government services. The responses highlighted concerns regarding the lack of personal information in the extension letter and instances of refusals despite having the letter. Additionally, there were discussions about dissatisfaction with Thai government policy related to visa extensions.