Vodacom failed to cancel my contract.

Vodacom is so terrible I have cancelled my Contract during lockdown over the phone. I called Vodacom head office due to me not getting thru to a call centre agent. they informed me that my contract is closed. I then received a debit order again after I cancelled the contract. I call once again this time I did manage to speak to the call centre. but wow nope my account got debited again. so I cancelled my debit order by the bank. now Vodacom is telling me that I need to pay for the last 2 months. how can I still pay while I cancelled the contract!!! I have spent 2 hours trying to speak to them today and then the phone drops as soon as they speak. Vodacom you are the leaders in SA on the network I really do not understand how you work. this is poor service and really people note that Vodacom will sell you a contract but if you feel that you what to cancel it you will have more issues then buying a house or fixing a broken-down old car. Vodacom stop *****ing from people !!! i am telling you now Vodacom will never reach there coal plan for 2025 and will never be world class.