Adam Sharpe, as there is a 30 day under consideration period with your type of visa extension , then you need to apply for a re- entry permit at the same time you go to your IO to request the extension. The RP will be dated until 30 days after your current visa extension period expires when you explain your circumstances to Immigration. So the RP. So that should be 30th January 2023. You arrive back after that date and the RP is invalid.
Hi Phillip. I was in the same situation as you in 2019. I too am married to a Thai national. Your RP date will be the same as your under review date ( should be month after the expiry of your visa extension ) . When you return toThailand from the UK just ensure the IO at Swampy sees this page and the date he gives you for permitted to stay is the same as the RP date as my bloke initially stamped the expiry date of my visa extension , so i got him to change. Dont forget to update your TM30 on return too within 24 hours.
, thank you for your response. I am in Phuket right now and theis 0office said they will. Just have to update TM30 on return to Chiang Mai they advised. A couple of years ago Chiang Mai said only their office would deal with my 90 dsys report .... interpretations of rules vary from one IO to another though and this seems to be another example .