High Data usage and poor service!

I need answers desperately as to why my bill for the past 2 months has been in excess of R5, 000 as I have never had such high data usage ever! (Average 250. pm)<br> <br> On the 1 October my bank phoned to advise of this astronomical bill and I told them to return the debit order as it was very suspicious. <br> I phoned, emailed and even went into the branch at Cresta to advise and ask for clarity, without success. In fact the first consultant told me to not pay until matter was resolved. <br> <br> My phone was then suspended on the 6 Oct and I had to pay an additional amount to reconnect. <br> All my queries have \been closed"without a satisfactory explanation other than I exceeded my data. I know this but I want to know why"