invoice and confirmation email

I purchased the avast plan from the avast app on my Mac and didn’t get any order confirmation or an invoice(checked the spam).
I would need to have the invoice to put in my business expenses but when I visit https://drhadmin.digitalriver.com/store?Action=DisplayOrderPortalOrderSearchPage&SiteID=avast&mail_mock=old
I don’t have my order number.

Where I can find some help?

https://support.avast.com/article/24/ (Orders/Subscriptions/Refunds)