FNB , How can we waste your time, lie to you confuse you , give you incorrect information be rude and not get back to you ?

The FNB Credit Card department, is the worse, and the most *********** group of individuals who do not know what they are doing and lack communication skills and who I have dealt with in my entire life! I am awaiting a response no one can give me , and yet over 1 month ago, I was APPROVED YES APPROVED for a Limit Increase, which now after a new application was declined for reasons that do not make any sense to me as to how I could possibly have been made an over in the first place, they keep saying I was pre-approved, yet I still have a signed Agreement in my possession and was told all it needed was fulfillment then they asked for my documents which I provided and then it was back and forth but finally I had the pleasure of dealing with 2 consultants Nthabiseng and Busisiwe who acted as if they own a personal stake in the bank and were giving me funds from their own pockets. I asked Busisiwe not to close my application and yet she did. I want to know why she did that when I clearly told her not to do it. I want a telephonic apology from these consultants and I want to know what form of Disciplinary Action will happen. Busisiwe also told me no ne knows how to do their job so please listen to the recordings. I am still awaiting for the Manager Happy Dlamini to call me to explain , it appears as if there is no proper investigation done and then everyone gets back to me with half baked answers. I was told my Limit increase was approved and all that was needed was 24-48 hours for fulfillment instead I had to pour my time energy and phone calls only for them to open a 2nd application to Decline me. So please advise? How Can you help me?