Double Debit Order

I have a personal loan with Nedbank Personal Loan. Whilst on Disability, NedGroup Life paid lumpsum amount for 6 months in Advance. Nedbank still Debiting from my Current Account. The Personal Loan Account is in Advance. Responses from Karn Muller, Jennefer Saygman (Personal Loan) and Nicole (NedGroup Life) is still pending from December. Presented my complaints with Complaints Center, they just could not assist. I am only left with no option but to complain on Hellopeter, before i take my complaints to the ombudsman for a solution on my case. Why cant Nedbank Stop my Debit when the account is already paid in Advance for 6 Months? What is the meaning of having NedGroup Life, if Nedbank still Debits from my current account?