VAT on Amazon Seller Fees

Hello. This might be a really dumb question and I apologise. I got an email a short while back stating Amazon will start charging VAT on seller fees (I think the commission they take from each sale). Which is fine as we are VAT registered and file monthly VAT returns anyway.

I cannot for the life of me figure out where I can download a monthly statement in order to claim back the VAT.

Can anyone point me in the right direction?