@Ellie ******
Thank you for your explanation.
Just to confirm:
For a person who has a retirement visa and a re-entry stamp - if he goes overseas and comes back to Thailand, he doesn’t need to go to the immigration office within the first few days in Thailand in order to tell them that he just came back from overseas?
He just needs to report that he’s in Thailand AFTER 90 days since his arrival, which should be a regular 90 days reporting?