How can I update my TM30 for a visa extension in Thailand?

The process of updating a TM30 in Thailand involves some specific rules. It has been clarified that there is no direct option to update a TM30 once it has been filed; instead, a new TM30 must be submitted by the property owner or leaseholder. Users have noted that older TM30 forms can still be accepted for visa extensions, and some have reported conducting the TM30 filings on behalf of their spouses using their own immigration account. Overall, the responsibility lies with the property owner to file a TM30, and past filings typically aren't monitored closely by immigration.