Umair Bin Tariq

Hi, So I am in Germany, but my company is UK-based, and all my buying and selling is in the UK through Amazon, and Amazon had charged me VAT, which they will pay to HMRC, and now I'm confused as they had charged me VAT for the last 2 years, and now I have no idea how to claim it back. Either it will be through my VAT returns or is there any guidance on how to do my VAT returns to claim that VAT back?