MTN is *****ing my data

Yesterday was the 5th time I called MTN explaining that my data is being depleted way too quickly. The agent I speak to always gives me the same response, f you use two apps simultaneously your data will deplete faster, ok given that apps must be closed and prevented from running in the background but I have been using a smart phone for quite a while and I am fully aware of how it works. After tons of explanation, a ticket was eventaully logged, however, what do I do in the interim, buy more data every 3 to 4 days? I think not! I want an answer MTN!