Poor service on refunding my money back and lack of system update for the credits that you received in your account.

I make an arrangement with them to debit my account for the amount of R1026,67 for 3 months starting on November 2022 up until January 2023 as I was owing the for hospital stay. However they debited account again February while I didn't owe them anything. When I called them to reverse the funds and refund me, they told me that I owe them R2000.00 and something. They were debiting my account and didn't update on their systems. Every months when they were debiting my account I was sending proof and follow up and I guess they didn't do their job. I'm sending whatsapp, calling them and sending emails but however they are not refunding my money back. The bank can't even reverse the debit it does not allow them. Am not happy at all poor service. Name:Lindiwe Tanjekwayo