FAQ 048. What's the/my postmaster address?

Its you domicile/home address
You are 'the post master' ,as you are sovereign and what you say-decree is law in the land and soil jurisdiction.
note:-
When you send your documents recorded delivery :-
The tracking number allows us to use the postal service as a court of records, and as such is recognised by the air Ecclesiastical and water admiralty and maritime legal system. 

Simple well explained download- print and have this with you whilst you fill out your documentation (recommended!) https://tinyurl.com/yc34ejdy  (it's on drop box)

note 

Sent via Recorded Post No.____________________________This Notice No. (2 pages)_______________________________is issued under thedoctrine of ‘Notices’,and served under ‘Universal postal Union Law’ by Royal Mail Special Delivery– Track & Trace of the ‘Law of Property Act 1925’ Section 196 (4) LPA 1925, which provides that ‘Anynotice shall also be sufficiently served, if it is served by registered post or recorded delivery, underSection 1 f the ‘Recorded Delivery Service Act 1962. Furthermore, under Section 127 (4) of the PostalServices Act 2000’ (PSA 2000) and PSA 2000, sch & Pt 11, paras 2-3, that you stand under as La