Terrible customer service, I have ordered a few pr...

Terrible customer service, I have ordered a few products from this company in the past and never had any issues. On my latest order I was sent 2 faulty toilet seats. Everything looked ok when we took delivery but when we went to fit them. One box had another customers personal details on so had obviously been a return. This is a breach of data protection as I now have this persons name and address! The other is badly scratched and has the bolts missing. We contacted the company and they told us they would be replaced so we sent pictures with the damage. They are now saying it's up to the supplier to agree to replace the goods. I keep trying to explain to them that they are faulty but they are not interested. I won't be ordering from them again.