File an A-to-z Guarantee Claim
You can file an A-to-z Guarantee claim via the Orders section in Your Account if you purchased physical goods from a third-party Seller on the Amazon.co.uk website.
To file an A-to-z Guarantee Claim:
Go to Your Orders.
Locate your order in the list and click File/View Claim.
Enter the required information and click Report problem.
For more information on the A-to-z Guarantee, go to About A-to-z Guarantee