Capitec and there ******* practices! I have the right to know why they decline me!

I was phoned for a creditcard awhile back! Capitec said i was declined due to vodacom thing ! So i sorted that out and have no debt at all! I went back today and again was declined and lady at The Grove mall capitec cant tell me why they decline me! Its my right to know! How can capitec whithhold this from me? Surely its ******* to do that! I asked her i have no debt, earn good salary and you decline me and cant tell me why? Better to close my account! This is how Mr Mutton's company operates ! I bet you he doesnt know about how customers gets treated