GP fail? end of world...
what is the GP grade? if D7, still can appeal like hell, and maybe
can go through..they will take into account your other grades, and
CCA records.
if E8, no need appeal. Either take a plane and head overseas, or
repeat the A levels again..
Anyway, GP fail, almost 70-80% of the courses in uni will not
accept you in...
oh, rem to ask your MP to write a letter for you! As the GE is
coming, they will be more than glad to help the residents in need!

good luck