From your Debutify Theme Manager, you can find and manage your billing information, including viewing and downloading your invoices.
How to download Debutify subscription invoices
From Shopify admin, click on apps.
Click on Debutify to open the theme manager.
Click on Billing to view a list of recent bills. Click on the Download icon next to the invoice you want to download. By default, the invoice opens as a .pdf document.