Late delivery of wrong item

I am extremely frustrated with a furniture order I made on the 14th of Jan. The item said "in stock." After a long wait of over 2 weeks the wrong item was delivered. I wrote an email to request a replacement and now I keep getting an email saying the same thing whenever I request feedback. That the code I ordered was what was delivered. It feels like an automated reply. I called twice before the delivery to make sure the correct item was ordered and it was confirmed both times over the phone. I'm writing on hello peter because I'm getting nowhere over email.