If you miss our call - we will decline you

I Have to say -I'm very disappointed at Nedbank and what has happened , I was recently thinking of changing banks , but I wanted to have all that I have at my current bank , so I app**** for a Credit card at Nedbank , I know my name is clean , so all went well and I received an sms that it was approved , they then tried to phone me the one evening -when I was still at a meeting at work -I tried to return the call but they could not tell me who wanted to speak to me , the next sms I got then told me it was declined because they could authenticate my detail , again I phoned the number supp**** , and was told someone would phone me back , up to today I have not been contacted again and I feel for a card to be declined because they made one call to me that was missed is not my idea of customer serves