Returns/exchange stress

I received an electric breast pump as a babyshower gift. The person who gifted it to me kept the slip and told me the branch where she bought it informed her that return/exchange wouldn't be a problem, I just shouldn't open the product. Went to our closest branch today, spoke with the manager. They weren't all that keen to help. Asked for the person who purchased the pump's banking details to pay the money into their account. Now I have to ask for the details and then ask the person to please pay the money over to me, which is an inconvenience to them.

This is really upsetting as it is such a hassle now. I really hope that this gets looked into as the inconvenience will keep one from buying there again.