Zero action to cancel a contract

After moving abroad I tried cancelling my contract. (the usual 24 month term had expired in November 2021). Unable to visit a MTN store in SA I have attempted to close the contract using various online portals. Each time I have received confirmations of my mails but had little action.. After eventually lodging a complaint using the online MTN complaints function I had a response from someone who mailed me to request certain key information which I provided. A few days later I received a sms confirming the number and contract would be discontinued on 22 June 2022. However, to date, the number and contract remain active and I continue being charged for a service I no longer require. After countless mails to their retentions and complaints teams (each time with an acknowledgment of receipt of my mail) I eventually threatened to go public on this. Complete ****** if you ask me. After more than 20 years of loyalty to MTN I would have expected better attention to this - they're quick to implement a debit order but terrible at cancelling. I have another contract at MTN which my daughter uses. Best I cancel this and move across to another service provider.