Discover Financial Service’s official site is www.Discover.com. Discover Financial Service is a foremost credit card issuer and electronic payment services company. At the official website of Discover Financial Services, you can pay bill online at Account centre.

In U.S. financial services, Discover Financial Services is one of the most well known brands. It is one of the largest card issuers in US since its inception in 1986. With millions of merchants and cash access locations, Discover Network is consisted by its payments businesses.

Make Online Payments features:

• By Paying Bill Online at Account Center, you can avoid having your payments which get lost in the mail.
• Save time
• Anywhere you can do payment before 5 p.m. Eastern Time.
• On which day your bill is due, pay same day
• Current Account summary
• Current billing period transactions
• Statements for the past 12 months
• Online bill payment
• Change of address, telephone number, and e-mail address
• Account e-mail reminders
• Online balance transfer requests
• Request new card designs
• Replace worn or damaged cards
• Cashback Bonus online redemption and information (for those cardmembers with the Cashback Bonus option)
• Online forms for self-service Account requests
• Safe and secure online shopping tool—ShopDiscover
• Add an Authorized user to your Account
• An automatic e–mail confirming that your payment has been scheduled
• An automatic e–mail alert when your scheduled payment is made to your account
• Get a current Account Summary
• Review statements for the past year
• Pay bills online
• And lots of more

How to pay Bill Online at Account Center:

It's quick and easy, to pay Bill Online, log into Discover Card Account Center, go on personal profile, and click on "Update Your Personal Information." You can change your account information to manage other features of your Account. To register www.Discover.com for Pay Bill Online at Account Center, go on this page and click on register. Enter your discover card number, discover card expiration date, 3-Digit Card member ID, Date of Birth of Primary Card member, Social Security Number of Primary Card member and Mother's Maiden Name of Primary Card member, now click on continue. Scheduled maintenance is performed by them on the Account Center every Sunday from 1 a.m. to 6 a.m. Eastern Time. So, during this time you can not access your Account online.

Here you can see the address of payment:

Payment Address:
Discover Financial Services
P.O. Box 6103
Carol Stream, IL 60197-6103

Customer Service:
Discover Financial Services
P.O. Box 30943
Salt Lake City, UT 84130-0943