Disappointed customer

I'm having a big problem with your client Dmc collections. I had an arrangement with them to pay your account via debit order. When the date of payment came there was no money in the account and I got a notification from my bank for a failed debit order. This went on for 10 consecutive days which means it's 10 times bank charges. I contacted them to 4 days later to cancel the debit order arrangement and I'll make manual payments. They refused telling me the debit order will run until the account is paid off. They did send me bank details and I made my 1st payment. This was the beginning of December. 31st December 2025 debit order failed again and till today it's still running. They were supposed to get back to me on Wednesday the 7th of January but nothing has been done. My bank charges me R25 per failed debit order so this means I will have to pay R500 on bank charges that was caused by your client Dmc which is money I could be paying you back. So I plead with you to rectify this issue as I'm still committed to paying my account and what makes matters worse is that everytime the debit order fails it affects my credit profile. The agent that refused to cancel the debit order is Phila from Dmc watsapp department