Can customers edit their billing information?
You can choose whether you would like your customer to have the ability to edit the billing information. If you would like to adjust this setting, follow the steps below:
1) Go to the Setup tab.
2) Click the Settings sub tab, scroll down, and you will be able to check or un-check the "Customers Can Edit Billing Information" box.
3) Click Save at the bottom of the page to save any changes.