Bad Service

First off , I have no signal most of the time, and then I get a bill of just short of R900. I query it, the operator does not understand me, then he promises to call me back the next day, he doesnt, i call back the next day, the lady understands me and logs a query, she tells me it will be 2 days, its now 5days later and my query is not sorted.<br> I call today to follow up, I was put on hold for 20mins, then cut off, i call back, and the lady pretends not to be able to hear me, this is disgusting service, they ask me for my tel number when i call and reference number before you even speak to an operator, why dont they even try to call me back???