Standard bank refuses to acknowledge supporting documentation

Last week I went to the chatsworth branch to apply for a credit card so I spoke to a new sales consultant who advised we do a new account and credit card application, I was under the assumption that I would know the outcome of the credit card application before opening an account yet the consultant opened the Account first, upon concluding with the account opening (titanium card) she told me that the credit card is not appearing so I was under the impression that she needed to follow on with an application, a week later she tells me that it was declined with an issue with one of my creditors which I then furnished her with supporting documentation on this debt, she then indicates to me that I need a letter from the creditor upon which I called creditor and they stated that they cannot provide to me. So I called her back to tell her about the outcome and she very rudely said I can go ahead and close my account I need to come to the branch, which I feel was not comforting in anyway because I needed some reassurance but she just displayed arrogance.

The Thing that confuses me is that Nedbank a week ago provided me with a credit card but standard bank refuses to and they refuse to even acknowledge the supporting documentation I sent.

Yet when I went to the branch wanting to do a credit card application first and if I didn't get the card I didn't want to open the account yet I felt like I was ******* to open an account and **** at that point about the credit card as I was assured that there would be a motivation sent to get the card, I only have like 5% debt as compared to the disposable income I receive yet I get an outcome like this

I am a disgruntled customer.