Bad service on vodacom insurance

Good day My name is Ncobile Ngobeni. On the 20th of July 2021 I called vodacom insurance to change my banking details... A lady called sbongile Dlamini adviced me to send my request via email. I did that and she told me that the update was successful. On the 15th of August the debit order did not go through, I called on the 16th to enquire and I was told that for September I will be double debited.Yesterday 15 September they still didn't debit again.. I called again today and was told that my insurance has been cancelled and there's nothing that they can do.. A female consultant was very rude and even hung up the call on me.She insists that I'm the one who rejected the debit order even when I tried explaining that I did no such hence i have been calling them wanting to know why they did not debit. My phone number is ***,ID number ***