Amazon Test Buy in UK

We need some help to run a test buy on Amazon UK. Someone is selling fake products under our brand, so we need a real customer who will receive the item from the other seller, to prove they are selling fake brand. We need: 1. A real UK delivery address where you could pick it up. 2. We will pay for the item and after that you will receive the item, we need the pictures for this item, to show they are not identical to our products. 3. You need to send it back from where you pick it up, so we could have the refund back. Not heavy product, within 1kg, value around £15-30.