Complain about the Epson service

I purchased the Epson printer in May 2020 which came with a 3 year extended warranty. This month I reported a fault with the printer, took it back to where I purchased it from for repairs. I was then informed that I didn’t register the product for extended warranted, therefore I must pay. I produced proof of registration but they refuted the claim.

I then fetched the product which was then returned with more faults than originally reported.