Capitec's Incompetence and bad service

After numerous attempts to have my credit card payment date changed from 21st of the month to the end of every month due to a change of job but as of to date nothing has been actioned or changed. I went into 2 branches with my letter of appointment that was sent to a number of departments, Spoke with countless watsapp agents, and to date no-one can assist with this. All I'm told is that it's been escalated with no feedback as promised. This is terrible service that will affect my credit score due to incompetence from all Capitec departments and their staff and the worst service I've ever had from a bank. I'm frustrated and feel the handling of this is not of importance at all this, will have a direct impact on my credit score after I've done everything from my side to sort. Capitec does not care at all! and this certainly no way to handle a client of 9 years. A change of bank is definitely on the way