Yes, I got a bit stranded in Thailand. Due to leave April 1st(yes) (my METV had expired March 18th) and my 'stamp' April 2nd BA cancelled my flight(s) Friday 27th Mar 2022 so I had to really shift gear and get the 90 day and the non-O based on retirement. I renewed just before I left and it's good until July 25th and I have a re-entry permit. I plan to return early January or post booster whichever is earlier.
... and the E-Visa equivalent mentions 'single entry' but that's it. Anyways I have a 'non O' now but in the UK awaiting my booster. Thank you and keep up the good work. It is much appreciated.
I am (was?) a serial user of them obtained in the now departed Hull Consulate but the London Embassy does not mention them. I know they became somewhat redundant at the peak of the lockdown and border closures but they don't seem to have reappeared.