Dispicable

I have a contract with Vodacom that ended 16 December and I have been cancelling it since the 24 of December 2020,it's 2021 and the contract is still not cancelled. I call every month and they keep reloading the sims with airtime instead of cancelling it.I have exhausted all the revenues trying to get help this is the last resort,the last consultant I spoke to was Princess on 03/02/21 at 11:34 and she had the nerve to hang up on me why I was still complain about my problem.I really don't know what to do now.I have been a loyal customer for many years I didn't expect this kind of poor service from Vodacom.