Steps:
Sign into your Online Account Portal by visiting Relaygo.com/families and clicking on the "Account" link. Use your existing Relay account credentials to login to your account
Click Payment in the drop down menu
Scroll down to the Payment Information section
Enter your new payment information, then click Update payment
You'll see a notification and receive an email to confirm that we've received your payment, saved your new payment info, and (if applicable) reinstated your account
Additional Notes
The payment information will still need to be updated if you are attempting to use the same card on file.
Keep in mind that payment is automatically attempted when the card on file is updated.