Poor communication and Service

The vodacom shop at the grove mall is a nightmare. I bought a brand new Samsung s7 from them almost 2 weeks ago and on the first day I noticed that the phone had a problem. It would randomly just freeze up and restart. When the same thing happened on the third day I took the phone back (23rd of March) and I was told I would be given a new phone WITHIN 5 working days. Minus the public holidays, it's been more than that and I haven't had ANY communication from Vodacom. I am now forced to pay for a phone I don't have while using an old phone that's not worth the same amount. I was also told I'd have to BUY one of those sim card adapters since they'd already done a sim swap and my old phone used a bigger sim than the s7, yet I was the one who was sold a bad phone. I went in today to find out what's going on and the service was terrible. The queue as usual was long and wasn't moving and there was no one at the door to direct me to the right person to speak to. I walk on crutches and cannot stand for long so with nowhere to sit while I wait and after about 15 minutes of standing in a non moving queue without any assistance I decided to leave. I truly regret renewing my contract with them