Bunch of ******

I made a claim in May 2022 and the new device I got was more than the insured value which I topped up anyway, I then contacted the insurance dept to increase the value they say they would inform Telkom, after a month there was no change and they sent me to the branch and the branch told me to call but still my device is under insured. My contract ended in Nov 2022 and I only contacted them to cancel beginning of Jan 2023 and I only kept the insurance, since July 2022 I arranged to pay them via EFT as the account is no longer in use. Suddenly in Feb I was debited after I made a payment and again in March another debit now they are telling me my account is handed over and am owing the more than R500 for the failed debit orders, like *** and the call center agent tells me they had a "backed up" not even sure what that means as she failed to explain. This company is just unbelievable.