Wrongfully declining HL application

I had submitted an application to Standard Bank Home Loans. I got a call from their outcome centre to say that it has been declined due to my affordability...I was obviously shocked knowing what's expenses vs income was and questioned why...the amounts quoted for Salary and Expenses given to me where not even remotely close to what I had provided the bank with...even after emailing a real pay slip! Due to a capturing error on their side, my loan was declined and ten they wanted to start the process of applying all over again after declining it, instead of trying to rectify the mistake and speed up the process!