Shockingly Bad Service with No feedback nothing

On the 29th June 2015, I visited the pavilion branch yet again not kmowing whats in store for me. I needed and still need a deposit slip for a R25 000 deposit I made on the 10th January 2015. Its now been 2weeks and I have not been contacted by FNB regarding the progress of the deposit slip. And I need it by friday 17th July 2015. When i went to check at the branch I was told the person (Dianne) i dealt with is no longer in the branch and they have to get hold of her to find out if she got a response or else there isn't much that can be done. Even though I was promised that they would get back to me to collect the deposit slip within 5 working days. I was also told that they cannot call the records people they only work via email. What kind of **** service is this that FNB consistently provides?