Dumb people to sell Smart devices

Vodacom 4U the glen On Saturday 5 March late afternoon I bought my son a Samsung Smartphone. We got home it doesn't want to set up. On Sunday morning I went back to find out what is wrong no answer I am get but wants to book the phone for 14 days. When I way contacting the CBU team. A technician comes and she deleted an app then phone work and I asked them what if the phone does this again. They assured me that it will never happened again. It is Monday the phone is shutting down apps as you open. The most stupid thing the manager did was not to allow me to upgrade to a phone twice the amount. I know Vodacom hires smart people but ot looks the shops are hiring dumbest to sell the smart technologies