Vodacom Fibre deducting more money without permission.

I received an email stating that Vodacom will be charging me R709 p/m for our Fibre. This up from R440 p/m.

The reasoning behind this was because their 10mb/s package is no longer available and we have been upgraded to the 50mb/s package. They did not ask for permission and takes your money even after you refuse to the agreement. They cannot simply inform you of this change, they have to get permission from you to ask whether you accept/can afford the uograde.

Needless to say that I am canceling, which has also been absolute hell.