*******ly increasing customer contract limits

I entered into a cellphone contract 20 months ago at a fee of R269 per month. The terms of the contract were clear that I do not want an open-ended contract, and I am happy with the basic offering of my contract. I even requested them to note on my account that no extras PLEASE. All was well until I received a debit notification of R858.28 on my bank account. On enquiry I was informed that Telkom errouneosly increased my data limit and if I did not need the service I was suppose to reply to an SMS. In addition, I was told I will be charged this month as they can only deactive next month<br> 1. My CONTRACT IS FOR R269, IF I NEED MORE I WILL CONTACT THEM ACCORDINGLY<br> 2. My original contract is in writing and signed with my specific request.<br> 3. I did not request for my limit to be increased, Telkom's revenue woes should not be my problem.<br> 4. Telkom is *******ly forcing customers to consume their services by increasing your CONTRACT without your concern.<br> <br> This is ********* and against my rights as a consumer. I will not pay almost R600 extra, for services I did not ask for.<br> <br> TELKOM, please sort out your revenue through other means OR lose more subscribers on your already small bas