Application “ failure “

I app**** for a store card at Ackermans all went well the application was approved. In the approval message i was asked to go to any Ackermans store to activate my Store Card, so i went to the one in East gate and when i got there to my surprise they said no I can’t get the store card due to some reasons. I felt like a real idiot . It pushed up my hopes cause i needed the card , but nevertheless there was nothing i could do in that moment to change the situation.