No progress

Two weeks back I bought 2 dresses from spree in 2 different sizes. I then requested a return for the one dress telephonically. When the courier company didn't contact me to collect I phoned spree again and they told me my return didn't log properly and they would investigate and get back to me. By Friday I still hadn't received feedback so I phoned again and the lady said the return still hadn't logged properly and no progress was made. It's now 2 weeks since I made the purchase and the dress is still sitting in the box in my wardrobe with no sign of being collected. Doesn't the CPA state that a consumer has the right to return goods? I'm baffled as to why this process is taking forever which means I'm also not being refunded<br> This is not good enough.