How to change my invoice data

Log in with your account data at https://setup.mailbox.org . After logging in, you are at the account level of the admin area. On the left side you will find the area for your billing data.
Here you can change your contact information as follows: Click on the 'change' button in the invoice data box. Make your desired changes and finish the process with the 'save' button.
You can also change your contact person and/or address there.