Missing Airtime & Data

Good day<br> <br> I have noticed that my airtime and data depletes at a very rapid rate. I eventually decided to give MTN a call to enquire.<br> The MTN champion informed me that airtime is being used when I have more than 1 application open (which is not the case) and this makes no sense since I have data to do these actions. Why is airtime being deducted when I have data for this??? She then informed of the total airtime amounts that got deducted from my airtime for this ...<br> Another issue is that MTN awards 1GB free when loading 1GB, but this free data also depletes at a rapid rate. I never experienced this issue when I moved over from Vodacom to MTN.<br> I was also informed that I accepted some competition which deducts R7 a week ! I never done this and was told to dial *141*5# to cancel this (which I have done). I want MTN to reimburse me with all the airtime that was taken from my phone and also the competition airtime money since Aug 2015. This is shocking!<br> The free minutes also depletes rapidly .. why is this? MTN, I was eager to move over from Vodacom to join your network but I have been ********** for months now. Please rectify this urgently.