Customer taken for granted

I purchased a Samsun Galaxy Grand Neo Plus phone at Hifi Corp Parkmeadows on 09/07/2015. After a few days the charger stopped working. I went back to Hifi on 28/07/2015 hoping to get a replacement only to be told that accessories were not covered on the warranty. After I instsed on getting some sort of help I was sent to a Samsung store at Eastgate where I was told they could not help me. I inquired how much the charger costs and was told R399. I feel it would be unfair to spend another R399 to replace a charger that I bought less than 30days ago as part and parcel of a gadget that is still on warranty. I feel taken for granted as a customer when I am being sent from pole to pillar after paying my money. I expect some one to care that at the end of the day I am happy as a customer with both the product and the service. At this point I am so disappointed. If this cannot be resolved please advice so that I can return the phone for a refund and buy something else from suppliers who care about their customers' satisfaction. That would be sad though as I am very happy with the phone.<br> Hoping to get a response soon.