Hi, we have a Made.com sofa in our living room, about three years old. It gets regular use and some sunlight reaches this room but nothing excessive. The velvet sofa material has badly faded several shades from dark green to much paler, in particular the area where we sit on the front corner where your legs rest. We contacted Made to ask for a voucher or credit to buy a new sofa from them as we accept some wear and tear and happy to get a new one from them, but what we got was a very defensive and formal reply telling us we need an independent assessment to prove the sofa is defective and directing us to Homeserve to pay £48 for this assessment. We don't want the expense or hassle if we can't get the right verdict from an assessor, and would welcome anyone's thoughts or advice on what will constitute defective v fair wear and tear?