Bad customer service

i have requested to be contact by the nedbank agent for the credit card application, the consultant call me an said that he wont be able to grant me credit card due to my credit score , i just recently open clothing account and cellphone contract ,however need bank doesnt want to give me a credit cards while my monthly salary is going to their bank , im not happy with need bank customer services , how come i dont qualify for credit card because of the scoring which the consultant said is low while other companies grant me account .