Vodacom customer service non-existent. ******** deductions.

I have been a client of Vodacom for 20 years and am very disappointed at the non-existent service I received. I have been struggling to cancel a data contract of R629 since April 2020 when it expired but with no luck. I have to phone every month just to be told after holding the line for 50 minutes: "we have escalated your request" and then nothing happens. Vodacom has been ********ly deducting R629 from my account since April 2020 to date and they refuse to reimburse me or cancel the contract that I have not been using since April 2020. I do not know what to do anymore!!! Very disappointed, annoyed and angry. They don't care about their loyal customers.