Forced to keep items that don’t work for my space

I bought a couch and ottoman on Saturday afternoon and also laybyed a few other items and the sale purchase items were delivered on the same day. On Sunday I went back to the store upon realising that the couch was a left unit and not a right unit and the ottoman occupying the space, I returned to the store to explain that they gave me the wrong end couch and require an exchange and a return on the ottoman but the funds be redirected to my laybye. I was told I’d get a response on Tuesday which didn’t happen, I sent an email today only to be called and told they can’t help me. I’m very disappointed because this means I’m forced to keep a couch that doesn’t work for my space and an ottoman I have no use for. I’m really disappointed in your service and to think I still have a few more items I took out on laybye 🥺