Billing more than they should

<p>Dear Vodacom.</p> <p> </p> <p>I have been a loyal client by you,always paid my invoice on time.Never ever have I missed or skipped a payment .How is it possable for you to deduct more off of my account than normal.I have not added any new services on to my account.</p> <p> </p> <p>I've tried to call your call centres but guess what?After 10min on the line a call centre person answer. Explained my issue,after another 10 min he puts me through to accounts department. Waiting another 10min,I've deside to end the call.</p> <p> </p> <p>Then the call centre calls me back after 1 hour.Sorry mnr Prinsloo we will call you Monday 5th of December. So now it's been 4 days still no answer. </p>