More details would be helpful?
Do you want to change your credit card information?
Here is the help article:
(or you could explore the help articles for other issues with paymet)
What to change credit card number
@carolyntolkacz sign in to your Self-Serve account, select the ‘Payment’ tab. If you would like to change the card that is automatically charged, scroll to the bottom of the ‘Payment’ tab, then select ‘Manage my card’. This will allow you to update or remove your credit or Visa Debit card.
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!