1GB DATA Disappeared - Bought 28 Aug, Ran-out Aug 30th and then told to buy more!

So, amazingly enough MTN "Service Champion", or whatever they call themselves, tells me one of my background apps consumed all of my Gig data yesterday. i.e. "You need to check your settings, then find/locate the app that is consuming the data and switch it off, then buy another Gig". Her words - Amanda, said her name was.

How ridiculous is this, when I have experienced this situation before and had a consultant, comes this name again "Service Champion", guided me step by step to release the withheld data because of apps running in the back end. Since that day I have monitored all my apps' usage, and actually put measures in place not to go through such taunting situations with MTN again. Then came Amanda!

I am done with this "Service Champion", and I do not expect such hospitality from a Service Provider I have had several contracts with and still have used this number till today, after discontinuing their contract thinking PayAsYouGo will give me less stress.

Thanks for nothing MTN and your Service Champions!