Sanlam debits unauthorized amount of 10x the premium agreement

On the first of November, Sanlam debited R3,348.54 from my bank account when my monthly instalment is suppose to be R545.94. When I noticed this on the, I called the call center which kept me on for one hour 30 minutes before I could get help. They told me to send my details via email and they would follow up. After sending my details I only received an automated response stating that the matter would be resolved by the 15th November 2024 and I never heard anything from them until the 15th where they Basically don't meet the American not be resolved on the projected time without a reason why and no date to follow up. This is unacceptable and! and for them to treat this matter without urgency is appalling. I have payments that I had to skip on because of this huge inconvenience. I want this matter resolved and immediately. Really not happy with Sanlam at the moment and I doubt they will be capable to fix this matter.