Disappointed customer

I am truly disappointed by Standard bank, I've been with this bank for over 10 years now, but every time i need help whether be home, personal loan or an overdraft it's never successful but all the other banks re able to approve my applications. I requested an increase on my overdraft the system gave me an error, i called in and did the application over the phone, i was told theirs an IT error, this is the 100th time I'm told about this IT error which i still don't understand, its been over 48hrs and i haven't received any correspondence. It's disappointing and frustrating to just be told its an IT error but not know what the problem is and those IT people still not be willing to resolve the issue. Its irritating, if my limit can't be increased thats fine but can i atleast know what the problem is then?