Inaccurate billing

I have had to call DSTV for package reconnection irrespective of the fact that I paid more than the amount that was displayed. I called to clarify the issue and I was promised it was resolved which was at the beginning of December. Ever since then, EVERYDAY I have had to call multichoice to connect my services. Secondly when I ask for my statement, it is sent in a format that does not open and I have asked on every call which are recorded to be transfered to a manager but to no avail. I have sent proof of payment but nothing is ever done. I'm so upset. My children are disappointed that they can't watch TV during holidays, we have had to resort to Netflix on other devices.