2 years ago when I moved to a new permanent address in Bangkok I mailed a TM28 and received the receipt back. This was before TM30 reporting was being enforced. Next week we are moving again. Am I right in thinking that Chaengwattana no longer require a TM28; just a new TM30? Or should I do both?
TLDR : Answer Summary
If you're moving to a new address in Bangkok, the current requirement is to file only the TM30 form. The TM28 is no longer necessary for reporting address changes, according to some contributors. It's advisable to confirm this when submitting the TM30 at the relevant authority.