How to update your contact and billing account details
Hover over Services & preferences and select User administration.
Click Admin settings and select Business settings and contact details.
To update the Billing account, select the Billing account dropdown, and select the desired account.
To update your business contact details, fill in the appropriate fields under Primary contact details.
At the bottom of the page, click Save.
Things you should know
You can only have one nominated billing account for a business network.