To change the invoice data, click on your avatar in the bottom left corner and choose Team settings.
Then navigate to the Billing tab and choose Billing details. Do not forget to hit the Update billing information button to save the changes.
As soon as you make a payment, the invoice appears at the Team settings page under Billing > History. To access this page, click on your avatar in the bottom left corner and open Team settings.
Navigate to the Billing tab and then click History. Here you can find and download an invoice for any payment you have ever made in Lokalise.