Vodacom Cellphone account

Vodacom has left me in trauma to an extent I never want to see myself associated with anything that says Vodacom. I had an experience where everything felt like a ****. I have a cellphone account that just never ends. 2 Years I paid off the account and months later Vodacom was still trying to deduct money from my account. A year later after settling my Vodacom cellphone account I was told that I'm still owing R2900 and they have handed over my account. I went to the store and I was told it's because I didn't cancel my account and guess what not a single person has told me I needed to close the account. So to save myself from being black listed i decided to pay the whole amount again and also cancelled my account. Let me tell today the 26th of August 2021 my Vodacom account is still active and I'm still being sent invoices. I am horrified with Vodacom and I will never advise anyone to take anything from Vodacom