Following this question, I had a refused entry in the UK before (about two years ago) and granted a temporary admission.
I am just curious, what does this stamp below mean? (there two stamps, what I am asking is the top stamp). What is this 45 XXX on the stamp for? I can hardly see any readable word on the stamp!
When I left EU via Amsterdam, the officer asked me what that is and I could not answer him. So I just told him that it was the date I left the UK.
EDIT: Sorry I think the code/ number should not be shown in this public space.