Purchased a laptop online and after receiving it, ...

Purchased a laptop online and after receiving it, I immediately realised it wasn't what I was after. I accept that was my mistake. However, because it was unused by me, I arranged to visit the store to get a credit to purchase a replacement laptop (a $300 more expensive laptop). When paying, I was charged a further $130 as a repackaging fee for the original laptop I'd brought back. As a returning customer (with intentions to continue my association with Computer Alliance), to be charged this fee was disappointing to say the least and I won't be returning!