Hi. I live in Hua Hin and I'm wanting some information please if possible. My husband and I have a multi entry Non-Imm O-A Visa. We left Thailand before our first 90 day report was due. So now we will report in 90 days from our re-entry. But I'm wondering if we have to go to immigration at Bluport to advise that we are back in Thailand again. Apologies for my last post when I didn't say where I lived.
TLDR : Answer Summary
The user inquires whether they need to notify immigration upon returning to Thailand with a multi-entry Non-Imm O-A Visa after leaving before their first 90-day report was due. According to a comment, if the user has already reported before leaving and has their report slip, they do not need to inform immigration of their return.