Not so easy banking with FNB

I requested a credit limit increase on my app, it was successful and it stated that THEY WILL BE IN TOUCH IF ANY DOCUMENTATION IS REQUIRED, so 1 week goes past and I phone and am told no they will escalate it, sure no problem. Another week goes by and I visit a fnb branch to talk to someone face to face, I get put on the phone with the credit department who were not helpful as they passed the buck about 3 times. I then phoned them again today only to be told that it was escalated (which I already knew) and that now I need to sign something and send it back, the lady wasn't very helpful either..now I have to wait a further few days because NO ONE communicated with me about this paperwork I need to sign. 1 2 3 not so easy.