Pep hlahatsi horrible, arrogant & bad service. Mandisa Nzolo & Letetswe complain team leader

I had a horrible experience in Pep hlahatsi (katlehong) today. I have bought a cellphone for my Granny in Pep sunward park life centre on the 25 April 25 and granny reside in Katlehong. When I gave the phone to her on the 26 April the phone is malfunction and dial numbers on it own. I returned the phone to pep hlahatsi and Mandisa Nzolo who was the stand in manager was arrogant as she even follow me outside the store as I was contacting Pep complain centre. To make it worse the consultant from complaints centre keeps on referring to head set T & C's other than cellphone till I run out of airtime that is 15 min on the call. No call back from pep complain desk till I call back and ask for the team leader. To top it all Letetswe the complaints team leader confirmed I can exchange the phone at any pep store up until she spoke to Mandisa Nzolo (hlahatsi so called stand in team leader suddenly I now need to take the phone to pep sunward lifestyle centre. Horrible service at location pep store. I had to drive to sunward pep to exchange and drive back to katlehong to deliver the phone at granny's place. Teams & conditions on the pep slip does not say we can't exchange at different pep store. Service is bad at location pep I don't know if the staff is doing this because black people usually don't complain.