Worst service provider and staff doesnt know how to do their job

I app**** for the black friday 25nov 2017 special mtn ran...30gb per month. I signed for it at the port elizabeth branch of mtn located on the Bridge greenacres mall and was assured that this was a done deal. Come december, no black friday special. I called and was assured by the same *********** sales consultant it will. Later I went in to the store and was again reassured. On the day the new plan was to kick in, no such happened. I called in and was told by the supervisor that the sales person was supposed to follow up.he did not. I.then spoke to him again and he says the contract was terminated on the 26nov unbeknownst to him. Several complaints and calls from me, I managed to get 7 gb. This im told was the pro rata. Fine.january 2018 rolls rounf and I have 10 gb night data and 10 gb anytime. What happened to the other 10 gb? This means I was not issued the other 10 with the pro rata batch as well. Yet I now hav to pay this bill. This is bs. I keep getting referred to the store and the store is ***********. Earlier in thr week I get an mtn sms saying the issue was escalated and will be resolved in 48 hours. Then I speak to the sales at the bridge who says 5 days?????? Mtn expects customers to pay for this kind of **** service.