Unhappy and unsatisfied Vodacom customer

I have phoned Vodacom numerous time since October 2017. I have visited the Vodacom shop in Randfontein and the very friendly agent there phoned Vodacom also regarding my complaint. Vodacom should have phoned me back within seven working days. still nothing. Vodacom offerd me upgrades in Sept 2017 on two of my wifi ****le contracts. I told the lady that I am not sure and she must phone me back. After that the contracts were upgrades without my consent. Sins October 2017 till now I have tried to cancelled above two numbers without any success. The amount of R108.61 x 2 for these two numbers is deducted of my account every month. A loss of R1512 for 7 months. Every time Vodacom says they record calls but no one contacts me back or I am transferred to another agent which can’t help me or the call is dropped. Two more numbers of mine is due for upgrade in May but will consider another network service. I am very unhappy and unsatisfied customer.