Vodacom - what a disappointment

I bought a brand new Samsung S8 Plus from the Vodacom shop in Paarl. After +- 12 days from purchase, the phone broke. In other words, I had no signal, received no calls, no watsapps, no internet connection, nothing! I took the phone back to the shop on that day, and it was shocking!!! With the belief of getting a good after-sales service and a friendly/helpful consultant, I was proven wrong and utterly disappointed! There was no attempt in helping me to get another phone for the time being while the Samsung phone was being repaired. They gave me a number to phone regarding the waiting period of repairs- but showed no sign of helping me and no sign of customer loyalty. It looks like after-sales services and customer relationships are not of importance to VODACOM. I am also very disappointed, because there was no attempt from the consultants side to help me get a new Samsung. My phone was out of the 7 day guarantee by only a week or so?? The chances of the phone breaking again are quite high, as it also gave me problems in the first 2 weeks of usage. Vodacom, please correct me, but this company is one of South Africa's leading Cellular networks? As most people use their phones for everyday communication and business-related situation - we are totally dependant on a RELIANT phone!! I hope you can see to this problem and fix it as soon as possible!