VODACOM CANCELLATION

In the beginning of February/March 2019 Vodacom call center phone me and inform me they can see I use a lot of data will I be interested to get a better vodacom package that include more data for me. My answer to them was it is fine but is it a separate sim card. The guy inform me no it is not they will just load the extra data on my phone every month on my exciting contract for R162 per month extra. So I agree. Then he inform me my package will be deliver to my door within the next 48hours, so I thought okay so maybe I just need to get a code from the package and enter it on my phone then I will be able to get more data. When the package come and I open it a saw it is a separate sim card. I phone Vodacom and inform them this is not what I expected so they inform me you got the package and you agree to take it so you need to pay it. Now it is more than 2 years later and my contract cancelation date was on the 18 March 2021. I phone the *** to cancel this sim card of mine that I don't use at all, because I got uncapped WIFI at my house and WIFI at work and every month I get data on my cellphone contract. I phone in on the 18/03/2021 to cancel it. Nothing happen they didn't cancel it on the 1 April the debit order went off again. On the 1 April 2021 I try to cancel it again, Nothing is happening, On the 12 April 2021 I phone in again to make sure it is cancel, still not on the 28 April 2021 I phone in again just to hear that it is still not been cancel. I WAS MAD, I THROW MY TOYS OUT OF THE COT!!!!! So now it is the end on April and another debit order will still go off from my account for people who is not doing their job. Really this is ridiculous.. I am paying for a sim card I don't use at all and now I am still paying for people who is not doing their job.