Partha Chakaraborty

I am experiencing difficulty in paying the application fee of University of Texas, Dallas. The portal is saying "There was a problem processing your payment: (Code: -1777, Description: Credit Card Auth failed: -1777)" to whatever card(visa, master card) I am using. I have checked that all my credentials are okay, I have enough credit, and I have used the card to e-commerce sites without any problem. Can you help me to solve the issue?