All the information regarding licensing requirements and credits can be found here:
NPPL
3.4 Incomplete SEP, SSEA, Microlight and/or ATC/CCF training
Credit may be given for training on SEP, SSEA and/or Microlight aircraft which has not been fully completed; applicants seeking credit for such training should contact the NPPL (SLMG) assistance advisers. Credit may also be given for ATC/CCF flying training conducted on the Vigilant TMG. All accreditation requirements will be determined by the applicant’s current experience and will be
assessed individually. The applicant will be required to complete the minimum instructional training hours for the NPPL (SLMG), to pass the JAR-FCL PPL (A) theoretical examinations and to pass the NPPL NST and GST in a SLMG.