Correct, but the fine stands.
My friend who was caught, fews years back now, but his pension dropped to what it was in 2009, the date they said he left. He was not fined, but he got the bill to pay back, which he did.
The other bloke I know was fined, and his pension dropped to what he should have got when he left.
He went back to the UK, he was a friend of the chap above.
A member of staff here has his own story, chap got caught, and his daughter in the UK was involved in the repercussions as she was his "middleman"..😱