Cannot change number for OTP - I have no access to my bank accounts via internet banking and or the app.

My life is majorly disrupted as I have no access to my money. I recently changed numbers and went into the branch to change the number that my Std Bank OTP is sent to my new number, the consultant advised me that it would take 24 hours to change, this was done on the 03/12/2020, its been 6 days and I cannot use my internet banking or standard bank app. I literally live my life using these portals as my business is linked to the my personal profile as well. This is causing a major disruption to my personal and business finances as I am delayed on making payments and cannot transfer money to my other bank accounts in order to keep everything in order.

I called the branch that i did the change and the lady advised that theres nothing she can do now and i must call he bank to de-register my internet banking and re-register it, i have been sitting on the phone for 2 hours and now i have reached my limit of patience, this is my money that i work hard for, why do i have to go through all this hassle in order to access it, spend soo much on my phone bill and mostly importantly, spend sooo much of my time, for 6 days i have been calling and waiting for hours on end to get this resolved. If I am not called back in the next 24 hours, then I am going to all social media platforms to advise people on how terrible of an experience I am having. My number is ***.