Cell C new contract

I had signed up for a new contract for the Huawei P20 Lite on Tuesday 10 July 2018 at cellc in Cornubia mall (kwazulu Natal , Durband). I then took the device home and waited for the battery to die, then charged it for eight hours as advised by the consultant at the store.

On Wednesday 11 July 2018 I noticed that the phone was getting heated up and the battery was dying very quickly. I could not take it back to the store on that day as I was at work, so I called the store and advised them that I will bring the device to the store the next day.

On Thursday 12 July 2018, I took the device back to the store, I was assisted by the same lady who signed me up for the contract (not sure if I should mention her name)

She took the device and said that it will be repaired and given back to me, I then asked why should it be repaired it is a brand new phone and I returned it within the seven day period that Cell C allows devices to be returned within. She advised me that it would be sent to the repair centre and they would have to judge if it would need to be repaired or replaced with a new phone. She failed to give me any documents or reference numbers to state that I have left the phone for repairs.

I then called in on Saturday 13 July 2018 to find out if the device had been picked up by the courier company. The call was answered by a male consultant who advised me that he does not know anything about any repaired, and the lady that assisted me will be back into the store in a short while she will call me back.

She returned my call 10 minutes later and advised me that the device is still in the store. And assured me yet again that the repair centre will get back to me within seven days, to say if they will repair or replace the phone.

Today 17 July 2018 ,I queried the above mentioned with Cell C customer care, they called the store and was told that there was no such device booked in for repairs at their store

I have had just about enough with cellc

WHAT IS THE WAY FORWARD?