To begin with, you will receive a receipt in your email inbox.
However, it’s also possible to get an overview of your purchases in the Lix app. Here's how:
Go to "Settings", either from the Lix app or from Lix.com. When you are logged in, your profile will appear in the upper right corner of your screen. By hovering your mouse over your username, three options will be prompted. Choose "Order Overview".
In the app, Profile settings are accessed from the front page—in the drop-down in the upper right corner. From Profile Settings, you can toggle to Order Overview.