Phone the CAA on Monday, the number is on their website. As above, they will advise you of the implications while you sort it out.
As for getting a PPL(A), look in LASORS. You only get a 10 hour credit for a PPL(H) so would need to do a minimum of 25 hours dual, 10 hours solo and a skills test. You might get some credit on the theory, but would probably have to take at least the aircraft systems paper.