If you intend to change your billing address or credit card information it is best that you do this a few days before your billing plan is to be automatically paid, so that you don't run into any issues that impede your plan renewal.
To change/update your billing information:
- Select My Account from the drop-down menu in the top right
- Select the Billing information tab
- To change your credit card info, click the Change link next to the credit card number
- Update/change your credit card info and click the Update button
- To change your billing address, click the Change link next to the billing address
- Update/change your billing address and click the Update button