Baggywrinkle
Well-Known Member
Strange interpretation. To prevent 90 days running out you need to let the rEU system know you left. Telling UK. you arrived back does nothing in that regard.
You are indeed right, it's the leaving that is most important to have logged.
I have a good friend who got detained by US Immigration on entry. They claimed he overstayed a previous visa even though he had left the US in good time, by road, over the Canadian border. The US had failed to record the exit on their computer system and it was only his Canadian stamp in his passport that got him released - belt and braces.
Always check-out and check-in. ?