Telkom Mobile data just disappears without even using them.

Telkom Mobile data just disappears without even using them , when calling call centre you advised there is nothing they can do as the usage shows you used the data even when your data 's were Off . I am irate as i keep paying for data that i do not use . calls i have not made and they display on the system but my phone was off .

TIRED OF THE SAME COMPLAIN ALL THE TIME .