@Armenia Click the My Account buttom top right of this page.
1) Login to Selfserve, click Payments & Add-ons tab.
2) Below "One Time Payment" and "Manage Auto Pay" options there is a very small link
"Manage my card - Update or remove my Credit or Visa debit card"
3) two options are available: "Replace this credit card" and "Remove this credit card"
Use "Replace this credit card" to update the CC info
Note: When entering the postal code do not enter any spaces. Also do not use the unit number field even if you live in an apartment or condo and use a desktop browser if you can.
Hope this helps!
