Charged for data outside of agreed amount

Dear Mr Contracts Manager<br> <br> I thank you for the communication emailed to me, but nowhere in this communication do I see what I have requested for you to supply to me in writing or a voice recording stating what you claim I have agreed too. <br> <br> You made me listen to a recording of the day the wifi router was sold to me. <br> I'm the first instance I ask what a an \open line"means it was not explained to me. The second time in the said recording I am informed that the contract is an open line in which I will be paying 15c/mb out of bundle rate after my 2gb data bundle which was at a cost of R149 has been depleted. <br> <br> I would like to now understand where in that conversation do I agree to paying a 99c/mb out of bundle rate. <br> <br> Mr Makubela I would like to categorilly state that there is no point at which I agree to that. And in no way was I informed of the fact that my out of bundle rate will change at any time. And for these reasons I will never agree to paying for something I never agreed on. It is quite important that Cellc as a private company practices fair business practices. You telling me that my contract is permanently disabled due to non payment is called me and is disgustin"""