PickupBird by Digiloop is an app that runs within Shopify, so it does not send or store invoices itself.
Shopify handles the entire billing process for the subscription and all related administration. Shopify issues the invoices, adding app subscription fees to them as line items.
Where to find your invoices
In the Shopify admin, open the Billing submenu under Settings.
Select the Shopify invoice you want to review.
In the Details section, you can review each charge item by item.
Click the Export bill button to download the invoice.
Good to know
If invoices aren't available under the Billing menu, check that you're logged in as the store owner or as a staff member with billing permissions, since Shopify strictly restricts access to the Billing section.
If you have questions about the app features related to a specific charge, contact PickupBird by Digiloop support via in-app chat or email.
If you have questions about Shopify's billing or payment process, contact Shopify support directly.