I'm on a retirement one year visa valid until August 2019 with a registered address in Trat immigration. Will fly home mid of December and return end of January 2019. As I'm planning to fly directly from Bangkok to Chang Mai when coming back for one week and then move to my registered address in Trat area do I have to go to the immigration office for a TM 30 or can I just return to my home and make the 90 reporting? Thank you in advance for your advice.