SPQR92, unfortunately the idiots at 22Gp have destroyed military accreditation for people in your situation....
...except, that is, for the NPPL, which is a national licence and free from 22Gp interference.
Your route to a Part-FCL PPL(A) should therefore be as follows:
1. Use the accreditation available to you to obtain a NPPL (SSEA).
2. Convert the NPPL to a PPL via a 'virtual LAPL' route. This means meeting both the NPPL-to-LAPL and LAPL-to-PPL conversion criteria without any phyisical need to hold a LAPL.
RAFFCA should know this - I've told them countless times that the military accreditation criteria I originally secured for the NPPL remains in place. See CAP 804 Part II Section 5 Part A Appendix 1 Pages 5-6.