I am about to extend my 45 days another 30 days at Thai Immigration in Bangkok, but i am also going to HUA HIN for some relaxing, should i just go to Immigration in HUA HIN instead of Bangkok?
TLDR : Answer Summary
The user is considering whether to extend their 45-day visa in Hua Hin instead of Bangkok. A comment suggests that it is permissible to choose either location but stresses the importance of having a TM30 filed with the Thai Immigration office where the extension application is made. The extension would add 30 days to the current end date of the stamped permission to stay.