Disappointed in Cell C

<br> I am really disappointed at the service that Cell C has been giving in the past couple of years hence I moved my main contract to MTN. <br> <br> My issue with Cell C is that I have a contract phone with them for my mother ***). Each month you debit an amount of R100 as an instalment but somehow this month (Month end Jan'15) was debited with an amount of R170 of which I wasn't informed about.<br> I called the call centre to enquire about this because to my knowledge R100 was supposed to be debited on my bank account. I was informed that an sms was sent to me as a reminder on the 6th of Feb 2015 informing me about price increase. I asked her to check when was the first sms sent because if that (sms on the 6th of Feb) was a reminder, there should have been the first sms. The call centre agent couldn't confirm with me if there was a first sms sent to me. She was *********** , not sure what to do and put me on hold for a very long time. <br> <br> I am really disappointed at cell c in the way they are communicating with me, it is not efficient and direct. Should I had known that I needed to pay extra fee in time, no debit order would have been returned. This is very inconvenient on my ban