Of course you haven’t found any license registered with the forum acount email:
xxxxxxxx@gmail.com

My license is registered with:
xxxxxxxx@hotmail.com

But don’t worry, the Avast support team has sended a reply for my ticket this morning asking for my order data. I’ve forwarded some screenshots of the Digital River confirmation email and my subscription page in the Avast settings.

They’ve told me that they’ll send a direct link to buy my license.