PEP Home Fleurdal mall

If I could give this store 5 below 0 for bad service. Pep Home at Fleurdal mall is the worst. I bought my son a Hisense phone at this store and paid by card. We lost the original slip but still have bank proof of payment.

The lady who I assume is the supervisor is blatantly sending us from pillar to post. She wanted the slip, we went to enquire at the other Pep stores at Fleurdal mall about slips and returns and they confirmed that they can do a reprint slip, I have proof that I paid for the device on my bank statement. Now, I am stuck with a phone that freezes on the boot screen and does not go any further than the power on screen. She kept saying she will help if we bring this and that but when we get there she sends us back with the phone saying she wants the original slip. So for a store as big as PEP, they don't keep record of what they sell? I mean they can match it to the transaction number on my bank statement proof of payment? PEP Home fleurdal, you are nasty and ******. This phone has a software fault that is obviously not our fault. If it was negligence, I would take accountability. What bad service.