Been looking through this chat can’t quite pin the information down so apologies for repetition.
Q1 - is the TR visa extension office the same one for Covid extension?
Q2 - is there an office in Pattaya or do I need to go to Bangkok.
Thanks for the help.
TLDR : Answer Summary
The TR visa extension and COVID extension can be processed at the same immigration office in Pattaya. You do not need to travel to Bangkok for the extension. The fee is 1900 THB for a one-month extension, and an additional month may be granted for free.