Panos Karnezis

Hi, Apologies if this has been addressed before - I couldn’t find anything in a quick forum search. I noticed Amazon Business charged me an 8% VAT rate for a textbook [GCSE Chemistry AQA Revision Guide - Higher includes Online Edition, Videos & Quizzes: for the 2025 and 2026 exams (CGP AQA GCSE Chemistry)] and I’m curious about two things: 1) Why was this rate applied, and 2) Can I claim it back? The invoice includes their UK VAT number (GB305634227). It’s been suggested that this might be a Luxembourg tax, which isn’t claimable, but 1) the VAT rate for books in Luxembourg is 3%, and 2) why would Amazon issue an invoice with a UK VAT number in that case? Any suggestions would be greatly appreciated.