Invoice doubled

<p>Still the service from vodacom is terrible!! My invoice last month was R900.50, this month it is R1329.50.</p> <p>I have top up accounts, so there is no reason why my account is so high. Phoned the call centre this morning, after being on the phone with them for 30 min I still don't have any answers!! You can't complain about service cause there is no service. Can someone please contact me to sort out my account or I will have no option as to reverse my debit order. </p>