Vanishing Data

On the 27th I loaded 2gig of data and about 1.5gig was gone within 45 minutes. I logged a query with their call center on the 27th and an agent Boipelo advised that they will investigate but never came back. I then tried again on the 28th but never got through to the center so went to their Facebook page on 29 th and it took them 3 days after many posts to attend to me only to be told that they cannot assist without a reference. I then insisted to be assisted and a consultant by name Dennis eventually called on the 2nd of May and advised that he was pulling a report and would call back later. When he called back he advised that he only managed to get a report from 8 am which was useless for me as my query was regarding what occurred before 8 . He said he would pull another one and send in writing but no one has contacted me ever since.