Cell C worst network in South Africa

I have been using Cell C prepaid for some time now. i loaded airtime last night and check that it was loaded onto my account. I then tried to purchase a daily data bundle but received an 'internal error' message. I then checked and ALL my data and airtime had disappeared, I called Cell C customer services this morning and was spoke to a very arrogant lady who insisted that i purchased a daily bundle last night and would not listen when i tried telling her that it didnt reflect. Even if it was purchased she couldnt answer me as to what happened to the remainder airtime. i asked to speak to a supervisor but was then cut off after being on the line for 10 minutes. This is small amounts that i am querying but it is the principle of the whole matter. My airtime and data just disappeared!!!!. EXTREMELY FRUSTRATED WITH YOUR POOR SERVICE CELL C.