Refund and discount not app****

I have had a contract with MTN for a number of years. This year i upgraded two of my contracts.<br> Both my contracts should be receiving a discount and none of these are app**** since the upgrade. I have queried MTN on a number of occasions and each time i get told that the discounts have now been app****. This morning i have again checked on this and they show that the discounts have been app****, but when the person checks they see that there is no discount on my account (reference ***, req ***). <br> <br> At the same time i have another query for a bill taken off my account for August where my bill was double the normal amount. When i queried this i was told that i am being billed for out of bundle data data charges. This was very strange as both my contracts are on Top Up. The original call (ref ***) i was told that there were a number of clients complaining about same and that i would be contacted for a refund. This call was on the 2 sept and since then no call has happened and i am out of pocket.<br> <br> Today i called (ref ***0) and after being on the call for almost 30 mins have been given two other areas to call (MTN Direct) and the refund department to sort my query out