Takealot disappoints!

I purchased a pool nudge paddle from Takealot. This product was supposed to keep my pool cleaner from getting stuck. It did not work and I retilurned it to Takealot. I was informed that they cannot accept this item because it was used. The item consists of 2 pieces of plastic and looked exactly as it did when I sent it back, as it did when I bought it. How can you not take a product back that does not function as advertised?