@Robert ******
, with all due respect I do not believe if you report to Chaengwattana (Bangkok) you need to update your TM 6 at the Immigration office. I go to the USA every year and return and do the 90 day report online and update my TM 6 number online doing the report. I have never had a problem doing it that way. I report to Chaengwattana also, as Melanie does.