To change your billing information for your ClickSambo account:
Log in and go to Account Settings > Invoice / Payments.
On the "Invoice/Payment Information" page, click the "Update" button next to your invoice details.
In the "Invoice Information" pop-up, fill in the required fields: Full Name, Tax Office, Tax Number, Open Address, Country, City.
Click the blue "Update" button at the bottom of the pop-up to save.
Your details will then be updated. You can click the Close button on the pop-up to return to the Invoice Information page.