You can either download your invoice directly from Avocode or you can specify the email where all invoices should be sent. To do that, just navigate to your billing details in your Team Settings and fill the "email" field. That will set the billing email for your account, so all invoices will be sent to the specified email.
1. Navigate to your Team settings
2. Download invoices at the bottom of the Billing tab
NOTE: If you need to change the billing data on your invoices, just change your billing address in Team settings and all invoices will be automatically re-generated.