Cancel the upgrades which I did not agree on

I received a call in April 2021 with regards to two of my Contracts that are due for upgrade and I told the lady I cannot talk at the moment cause at that time I was at work and busy and she went on and on about some study material or something she will send me and a few days later your courier RAM came with a delivery and I was confused to find 2 sim cards inside. I called and was advised that my contracts has been upgraded and that was the cards. Needless to say I was highly upset and advises lady to rectify this because I was planning to cancel both due to my account being so high every month. And of I should upgrade I like so upgrade with devices. I was advised they would rectify and all I need to do was hand the cards back to the courier. She arranged collection via RAM and thet fetched from me col***4. Today I checked my expiry dates on both cards and was highly upset to see in 2023 they expire..... Meaning you did not cancel my request as promised and your courier came to fetch the cards. How are you going to rectify this as I do not want to pay on both for two more years. I want to cancel both or one of them?????? This is unacceptable and after I phoned your operator and was assured you would rectify the problem?????? Please change this and change it immediately because I will cancel all my contracts with you guys as they expire. Not the first time I have issues with your service *** Thea Strydom.... The nrs in question are *** and ***.