Billing addresses are required for organizations to activate SIMs, make purchases, and refill account balances. To add billing address to your Hologram account go to the Billing section on the left hand-side navigation bar of your Dashboard.
Once in the Billing section, make sure there is a valid payment method on file in the Payment method card. Next, under Billing address, click the Add billing address button.
Next, enter your billing address information and click the Save address button.
You should now see your billing address added to your account.