R i p p i n g off clients and justifying it

i have endless issue with cell c. i laid a complaint about be charged for services thats not being used and the department cant solve the issue but justifies that they are right in charging me.<br> i use email, bbm and whats app only on by blackberry torch. i dont surf the net neither do i have apps that are being used. i buy BIS, and have remaining airtime. then i get charged for data from my airtime, then you get theses du mb as ses from technical that send you an sms after i laid a complaint and they say that my data validation query has been completed and the usage is valid. this doesnt solve my issue of why am i being charged from my airtime for data usage when i have over 1gb of data available. can someone competent handle this, maybe let a white guy to try and solve this issue as the rocket scientists you currently have should be sent to the moon.