DISGUSTING lack of customer service

My mother and I went in to purchase a new Hisense smartphone for her. She was assured by the salesman that she could use her current MTN simcard in the phone. Once we got it home we discovered it would connect to wifi, receive calls and SMSes but would not connect to data out of wifi range. We returned to Dion Wired only to be informed by the manager that the phone was locked to Vodacom, which is total ******* as a friend bought the same phone from the same store and uses it on MTN. Both networks confirmed that the phone is not locked. The phone was then sent by the store to be tested for defaults. It was back within a week but nobody contacted my mother to tell her it was ready two weeks ago. They apparently phoned once and \got voicemail". Now the store claims that there is nothing wrong with the phone. The service received throughout this ordeal has been pathetic. My mother either needs to be given a new phone or a refund. You cannot sell people items that do not work and expect no backlash. Sort yourselves out and get your staff some proper training!"""