Without looking anything up
Then noticed I am a thicko and only passed 4 GCSE's with the minimum entry for CPL being 5!
Says who ?
I know at least two people who have CPLs who would struggle to find their own backsides without a hint (and I would knit fog if they have 1 GCSE never mind 5).
And now having looked at some documents.
A quote from LASORS with my emboldening from section A4 [HOW TO BE A PILOT UNDER
JAR-FCL]
The educational standard assumed for the full time
Commercial Pilot Licence Integrated course is at least
5 GCE ‘O’ Level or 5 GCSE ‘C’ Level passes, including
English Language, Mathematics and a Science
subject. However, the minimum educational requirements
are actually left to the discretion of the FTO concerned.
You will probably find that for sponsorship, an airline will
require at least 2 GCE ‘A’ Level or 2 GCSE ‘H’ Level
passes.
Note that this says for an
integrated course, which you won't be doing anyway, there don't appear to be any pre requisites for a CPL(H) which is viewed as a PPL(H) upgrade as far as a modular course is concerned.
I think you are fine to begin your training.