I bought a cellphone on the 20/12/2017 and took it back in 4 days and they refused to refund me.

On the 20/12/2017 I bought a cellphone at Belhar I noticed on the day of purchase whilst inside the shop that the phone had a problem with switching on and I immediately notified the sales agent of the matter and her response was that the phone first needs to be charged. This came as a schock to me as I have purchased phones before and they would Immediately switch on. After that they took the phone to the back and came back a couple of minutes later with it showing 100% charged. Still we struggled to switch it on but the sales agent Zikhona told us we must be patient. At this point we then left the store. When we got home it still gave us the same problem of not switching on it was then that on the 24/12/2017 I decided to take the phone back as it was within the 7 day period. When I got to the store you told the problem and they ref to refund me my money saying that they must take to vodacom for repairs and I informed them that I am still covered by the 7 day policy . Still they refused. They took the phone and to date I have not heard any feedback from them. I am very unhappy about how Ackermans treated me and refused to refund me my money whereas I comp**** with everything. I brought back the phone within 7 days and I was expecting to be given my money back not to be told about the service provider. I don't want the phone I want my money.