One week ago, i ordered a rare collection of manga comic books from the EU(worth £588) to which i was incorrectly charged £112 VAT. I'm in the process of filling out the dispute form(BOR286) and i need reassurance that the UK border force doesnt look for extra reasons to decline my dispute even though i'm 99.9% sure that I'm in the right.(VAT on comics are zero-rated from 01/01/2021 onwards). What type of evidences should i include(other than the main ones like charge sheet, decleration form, pictures of the manga)? What would the commodity code be? I already looked in multiple threads here, reddit and other places and the commodity codes are all different.
Any help is appreciated :))