How difficult is it to change a debit order date and how long does it take to process?

On 4 January 2021, I contacted the Standard Bank Account Assistance Department on the *** telephone number. This was to request a date change for a debit order deduction on vehicle financing, to one day later than the presently set date (perhaps that is the problem, maybe if I asked for it to be for 5 days later it would be processed?)

I was assisted by a friendly, helpful individual (call duration 15 min 46 seconds) and a reference number was SMSed to me and advised it would be processed by 6 January 2021.

At 17h49 on 6 January, an SMS was sent to me to advise that the service request was still in progress.

On 8 January, after checking my account to see whether the date requested had been updated and seeing it wasn't, I contacted Standard Bank again (5 min 16 seconds call duration) and was assisted again by a helpful, friendly assistant. They said the request was processed on the 7th by a consultant, but clearly the date did not change. An email was sent the consultant by the call center assistant and I was assured this would be updated.

Today, 11 January 2021 (one week later) and I see the date change request was still not amended. Once again a call to Standard Bank (12 min 44 seconds call duration) and again helpful assistant who could see there was no date change made. Instead of just sending an email, she phoned the consultant, named Rosemary, to request the date change. Apparently the date change was made but did not "take". Once again, I have been advised that this will be processed. Unfortunately, I do not feel terribly convinced that there won't be a need for a further follow up call in the next day or two to again get this processed.

How difficult is it to change a debit order date ****erally to one day later than the present set date) and how long does it take to process? Surely a week is a little ridiculous and the fact that I need to keep phoning to follow up on the request as well.

Service Request #***