"Do you have a UK National type rating for which you need a UK PPLA National aeroplane licence
This is not a NPPL! If you are applying for the initial issue of a PPL it is highly improbable that you would hold a National Type rating which would have to be part of an existing licence!
If you held a professional licence and were converting to a Part FCL licence then the offer of retaining or acquiring a National Licence might be a very worthwhile option in these uncertain times and the cost of no consequence. When converting to an EASA licence I acquired a lifetime UK ATPL for £40, good value at any time.
The issue of National Licences which are listed in the ANO Schedule 8 is often resisted by the CAA however; Article 152 is quite clear:
Grant, renewal and privileges of United Kingdom flight crew licences
152.—(1) Subject to article 172, the CAA or a person approved by the CAA for that purpose must grant licences of any of the classes specified in Part 1 of Schedule 8, authorising the holder to act as a member of the flight crew of a non-EASA aircraft registered in the United Kingdom, if it is satisfied that the applicant is—
(a) a fit person to hold the licence; and
(b) qualified by having the knowledge, experience, competence, skill and physical and mental fitness to act in the capacity to which the licence relates.
If they don't issue one the applicant has a right of apeal under CAA regulation 6.