Upgraded and paying more with no consent.

I received a call to inform me that I qualify for additional products at Vodacom, I have no interest in this.

In the process I asked the agent on what accounts are linked to my profile and informed me that on 30 September 2018 at 13:40 my data package on my 3G router was upgraded under order number 1- ********** ********** . I did not agree to this at all and did not provide any correspondence telephonically, verbally or written. Is vodacom not supposed to ask for authorization? In hind sight I want this cancelled and refunded for the debit order taken off. The monthly charge confirmed by the Vodacom agent is R249 per month, mulitply this by 24 months and it will amount to close to R6000 that was not agreed to.

The number is ********** 090

Should customers not be asked if they want to continue or does some fool think lets just do this without express prior consent?

Please refund and cancel the above order.