Vodacom is exploitive and underhanded

Vodacom keeps debiting me for a contract I settled in January 2022. I escalated this in March already (‪1-**********3736‬) and thought the matter was resolved cause I wasn't debited in April and converted to prepaid but they decided to debit me in May and again in June 2022. I escalated this on Hello Peter and their response was that it was a debit order that was meant to go off as a result of them delaying the closure of my account. I just happened to check my credit report today and found that now Vodacom is stating I am in arears by 4 months of payments and that I owe them over R9000. Where does this amount even come from? I settled this account in Feb 2022 already. This matter needs to be sorted out cause now it is affecting my credit record! Vodacom is useless. I honestly always have these issues with Vodacom and it's becoming exploitive. I owe them nothing. I don't have the capacity to be making expensive calls to the call centre from Dubai.