Wesbank- Terrible service debit order date

Terrible service from wesbank Requested a change of my debit order date from the 25th to the 1st for over three months and I've been met with the worst experience ever 1.) I've made multiple requests on the app which doesn't seem to work as when I call wesbank they tell me that they have recieved no such request,(I have all the screenshot evidence 2.) Call centre takes over 30minutes to answer a call and drops the call at times when I do get through 3.) They are quick to call for collections however nobody is ever willing to assist on the change on debit order date 4.)the window change the debit order is very short which this hole process all the more inconvenient as if I call during the wrong time of the month they insist they are unable to help as I need to call during a certain date period

This debit order being incorrect has resulted in failed debit orders and fees which I should not be incurring

This Is a very simple process which should be able to be automated onto the app And considering fnb is my primary bank they are able to see that I am only paid on the last day of the month