DEBIT ORDER DATE NOT CHANGED CORRECTLY AND DEBIT ORDER FOR DECEMBER 2024 STILL NOT DEDUCTED

I have an annuity with Sanlam for years now. I keep on sending requests to change my debit order date to the 25th, after my last request they changed it to the 24th of each month. Further, it is already 7 January 2025 and my debit order for December 2024 was still not deducted and shows outstanding. Why must I struggle so much in order to keep an annuity with a place, that definitely gives me the idea they don't need my business, as I now have to make plan to sort out the December 2024 payment via eft.