www.citicards.com account login bill pay online make a payment

i wanted to make a bill payment online to citicards.com account of my citibank credit card. How can i login to citicards.com to make a payment.I just got $1000 from 100dayloans to pay off this bill. These guys are awesome. They send money next morning to your account when you need it. I want to pay off this bill now, please help.