Cancellation of contract

i have 3 mobile contracts with Telkom ,on the 1st of August I requested to cancel 1 that I have had for the past 6 years and asked that my number be on prepaid, last debit order was supposed to be on the 20th of August, to my surprise on the 20th of September debit order went off. on the 02-October -2019 I called and spoke to a very *********** Tshepiso who put me on hold for 20 min only to come back to tell me that the contract was not cancelled and referred me to cancel it online then I asked to speak to team leader who told me that they can cancel the contract but i cant keep the number as my number is under business accounts and they need to contact the business for security checks. No business has ever opened and account for me and the account that they have been debiting for the past 6 years is my account not a business account .Contract was cancelled sadly my number was also discontinued , now i have to get a new number to give to my service providers