Please help me change the debit order number detail

This is neither a compliment nor a complaint, merely a cry for help. I have just sat on the phone for 23 minutes, spoken to 3 consultants and again taken straight back to the recording each time I was holding for their responses to my questions. What I would like to do is change my detail of my debit order and it seems to be quite the issue. I recently had to change my credit card due to ********. My debit order from my bank to the Std Bank Credit Card number needs to be changed as it is first going to the old Credit Card number and then to the new Credit Card number which is taking time and I'm sure more charges. I am not going to phone again and go through the same issues. Please could someone from Standard Bank contact me so that I can change the detail accordingly. Thank you.