Complaint against Vodacom

In 2016 I cancels two Tablet contract when they have expired. To Vodacom the contracts have not met the requirements and have been upgraded in stead. In 2018 Vodacom gave me a call, to say I can upgrade the one cellphone, ********** 884. They offerd me the pensioners pack for R89. But they upgraded all my contracts even the tablets that should have been cancelled in 2016. Two years have passed and nothing except bills. Even my Internet ****el's contract have been upgraded that was not nessasery. I were there again today to upgrade my contract just to find out everything was upgraded. How hard can it be?... And how long should I still wait, or pay for something I did not ask for?... Can someone please help so the mistake can be rectified asap. Thank you. And if Vodacom can or delay to help me I will cancel all my contracts and find a different service provider who can assist me in all my needs.