Vodacom forcing me to keep their contact after expiring 💔😭

Vodacom day light 🚨🚨 *******!!!!

I opened data contract 30Aug 2019-30Aug 2021 But when I went to them in August they refuse to cancel it and said it's expiring 9 September then I said to them they must cancel when they deduct for September and they told me it's done and I even tell them that I don't use it because we had a quarrel with the father of my babe and he ended up going with the router. I wanted to finish paying the contract and close it but till today they are allowing him to use not blocking it they are even calling and speaking to him but I asked for the line to be blocked in August. What I don't understand is why Vodacom does not want to cancel the contract they have been debating me since till today they are even telling me that they are going to debit for December and if I reverse they will put me in areas and be in debt.💔💔💔💔💔💔💔💔