Issued a debit card instead of a credit card

I app**** for a credit card through FNB Diepsloot and submitted all the required documents. This was approved and I was advised what my credit would be. I later received an SMS to collect my card from the branch only to find that when I made a withdrawal, my own savings account money was withdrawn. I then went online and was shocked to learn that there was no credit card account linked to my profile. All FNB did was issue me with another debit card and put me under the impression that it was a credit card. To think that while waiting for the credit card, we used all our household funds expecting to bridge that gap with the expected credit card! Which bank misleads its customers like this and gives its customers this product while they specifically asked for another product? In all my banking years, I have never seen so much unprofessionalism and not to mention incompetence! FNB's lack of attention to the customers' financial needs really affected my financial position. Isn't one of the bank's role to protect their savings/investments to ensure that they can realise their financial goals? Well, their incompetence put me in a difficult financial position and I wonder why I am not shopping for another bank that can at least interprete my banking requests and give me exactly what I am asking for. I would not be expecting more than this from any bank in SA because excellent customer service is increasingly becoming nothing but a rumor-very sad. Should you deem this worthy of your time and investigation, my ID number is ********** 709080. Cell: ********** 286