DATA disappearing fast... Please FIX THIS

This morning I spoke to Lisa at Vodacom's 'Solutions Department' Yesterday evening I spoke to someone at vodacom, who offered me 1gig of data while 'my query is still in process of being resolved' at 2:37 this morning I still had the 1 gig data. As usual, I went on to Facebook and more than 800mb was consumed by 07:00 in the morning. Really?????? So.... the same 1 gig I was given as some sort of recourse is taken back? Same as a huge amount of data that was consumed a day before???? NO ONE IS COMING UP WITH ANSWERS. THIS IS VERY FRUSTRATING... Lisa told me that my problem will be sorted. Though she could not give me assurance that it would. I asked what is going to be done differently to ensure that my problem is solved. SHE COULDN'T EXPLAIN. Iasked her how I should proceed from now until the TECHNICIANS COME WITH A SOLUTION TO MY PROBLEM, she didn't know. It seemed like she was ticking boxes on a checklist instead of being genuinely interested in hearing my problem and coming up with a solution. She kept on telling me I did updates, I had background apps open.... which is not true. So.... is this how I am going to relate with vodacom now. Another challenge is that I am locked in this contract that ends earlt next year!!!!!! If I choose to leave Vodacom, I am stuck with you until my contract ends. I'm really caught between a rock and a hard place. Is there someone out there who can come up with a solution to my problem????????? THIS IS REALLY HOW I'M GOING TO SPEND MY DAYS NOW? COMPLAIN ABOUT DISAPPEARING DATA? The SOLUTION DEPARTMENT didn't have a solution for me. I NEED A PERMANENT LASTING SOLUTION FOR THIS PROBLEM!!!!! Please!!!!!!!!!!