Vodacom and Poor/Disgusting Service

We went in to do a contract upgrade at the Vodacom Shop in Canal Walk. We decided to take the Samsung S8. Completed everything and walked out the store. Went home and was excited to have the new S8. During the SmartSwitch from my old phone to the new phone it "DIED TWICE", put the phone on charge and the phone didn't last the day. Took it back and was told that it would be sent away. Few days later got a notification to collect the phone and the technician says they found nothing wrong. On Friday 12 January the phone didn't even last till 12:00 before I had to place the phone on charge yet again. Saturday morning went back to the store and no surprise ask to deal with manager on duty and what absolutely **** service did I get from him, telling me that what don't I understand by the 7 day out of box warranty. So yet again the phone is being sent away. I am absolutely disgusted with Vodacom and the service it delivers. Why make the promise to deliver absolute service and not deliver. So yet again I now wait for this issue to be resolved. So let's see if Vodacom!!