Do you need to ask your agent to do TM30 if you were there for a while already but you left Thailand and come back again recently?
TLDR : Answer Summary
Whether you need to ask your agent to handle the TM30 form after returning to Thailand depends on the Immigration Office policies and whether you are returning to the same address. Some offices require re-registration for the TM30 after international trips, while others do not. It is recommended to inquire with your landlord regarding this process instead of relying solely on your agent.