Vodacom contract cancellation - ********* upgrade

I'm very disappointed with Vodacom, I took a contract with them in 2022, then in 2023 I lost my job, the account then went into arrears, in 2024 I managed to start paying up the arrears to date and they reconnected my account somehow managed to upgrade me without my consent. I now want to cancel my contract and I'm told that my contract is only ending in 2027. How does one sign up for a 24 months contract and end up paying it for 5 years. Even the months they suspended the services, it cannot amount to additional 3 more years. I have called their call centre multiple times with back and forths between accounts and customer care departments. last call I wanted to call escalation and was told their escalation team would call me in 2 hours time that was on 20th Feb 2025. Till this day, I have not received a call. I want out of this. How do you upgrade someone who is in arrears a does not qualify for credit? I want out of this.