MTN *****S DATA TWICE IN ONE DAY

I keep lots of data for work purposes. This morning I have 1.23gb data available and then boom data is depleted I call MTN customer care and a consultant explains to me that I used the data and I had applications running in the back and updating. However, the same application only ONE is being turned on and off for work for weeks yet today it took all the data, how is this possible?

It's early I don't feel like arguing with the consultant so I cut the call and buy 1gb data at 10:09am i get a notification so I check my data and there is 99mb remaining HOW. I call customer care different person gives me the same story but this is impossible as my phone data was turning off and even if it was on all my applications on my phone is turned off. I received a reference for investigation SMC/ ********** 6290 and no1 has contacted me yet.

I am not purchasing data again just so you people can ***** it. Its bad enough data charges are so high on top of it all you ***** as well. Its not fair to me as a customer. This is the umpteenth time that data is disappearing from my account I always call in and I always hear the same story which prompts me to believe that this is the story that you people are selling to all customer apps running in the back even when there is nothing on.