Disgruntled customer

I am really tired of these company always taking our airtime. Like honestly how do they tell something she was on the internet when their cell data is off. To make matters I call their call centre and this lady is shouting at me. I honestly had to hang up. When I call back the other one tells me I have to call back on the 1st of May thats when they can solve my matter. In the mean time I just have to sit and wait while cell c keeps on taking my airtime!