BASED ON THE VAAC ADVISORY TIMED 0000Z APRIL 20TH THE SCOTTISH
FIR/UIR OUTSIDE OF THE CONTAMINATED AREA WILL OPEN AT 0600Z APRIL
20TH. THE LONDON FIR/UIR REMAINS ZERO RATED BELOW FL200 UNTIL
FURTHER NOTICE.
So thats why you can see panes above FL200 over England.