Data & Airtime Dispute

It has taken me more than two years to speak out.Let me start off by saying that I do no like complaining but I just had to spit this out. I have been with Cell C for many years. I have been calling their customer service helpline on 140 many time complaining about data & airtime disappearing. CellC consultants have always given me silly reasons for the data disappearing. The last nerve was this morning when I loaded R50 on ********** 075and bought additional data for R9 (50MB), then logging on my email to check my emails only for the data to disappear literary 59 seconds later with all my remaining airtime. I frantically called 140 at 10h00 to complain. The consultant could not give me a satisfactory reason for the data dispute. He advised that I should rather call again after 45MINUTES giving me the you need us more we need you attitude. I am very cautious when it comes to data usage, I have worked in the telecoms industry for over 13 years, having worked for MTN SA & VODACOM SA respectively as a Senior Quality Assessor. I switch off my data when not using it and have read the Bible on how to save data & probably contributed to the content. I know everything there is to know about data use and costs. The rate at which CellC has ****** my data & airtime is not only alarming but appalling. I am sure CellC can pull out my call history & check the notes on their systems and see that I have called more than 10 times in the last 24 months over data dispute. At this rate one is tempted to get rid of the sim card and port to a better service provider. Over the years I have lost Gigabytes of data which I never got to use but it seems to just vanish. & this needs to end. I now fully support the #datamustfallmovement because I know that we as consumers are being over charged and ****** of hard earned money. I run a business and make use of other networks such as Telkom & have never had similar problems. I write this this review as an angry customer because this cannot go on...This a **************** and needs to be addressed...I have been silent for way too long...This is THEFT!