Over billed for contract I do not have

I was having 2 data contract with telkom, on the 1st of October 2021 one of them was not connecting, so I went to the store on the 2nd to enquire as to wht has happened, they told me it was cancelled, I will have to take a new one and I did. In November when I received my monthly invoice, I was surprised that I was billed for 3 data contract whereas I am only having 2. I went to telkom branch in Hammingwayz, where I was told that the one contract that was cancelled on the 30/09/2021 was re-instated on the 14/10/2021 by call center, which i was not even inform about. They told me that my complaint can only be resolved by call center, and when I enquire with the call center they are telling me I should consult the store. Now i feel like I am treated like a idiot, why would i be sent from pillar to post.