African Bank giving false hope!

Good day, I am so upset with African Bank. I went to the Tygervalley Branch. App**** for a credit card and was told i qualified for R5000.00, i gave all the documents they needed and was told they do not have a card for me now, but they will receive new stock the following week and then i just have to bring my ID with. When they phoned me and told me the card is ready I can come, I went in and had to sign the contract etc and got my card, only then was I told that it needed to go to Head office for approval...How can they give me a card where I had to put my own pin in and sign a contract and now it was send to Head Office for approval...where is was DECLINED btw...how can you give a person so much hope and now this? Im sitting with a card I can't even use and Headoffice does not give ANY reason for declining my application....where I thought I was APPROVED! I am so upset with African Bank and it would be much appreciated if they can APPROVE my request for a small credit card of R5000.00!! They did everything wrong...how can you give someone a card etc. and now I am being declined? Let’s see if my request will be approved now and if they will hear me out!