I was able to successfully set up invoices for your license. Please follow the below instructions to print or view the invoice. 

Log into your TubeBuddy account - www.tubebuddy.com/account. Click on the Manage button next to license for which you want to download an invoice. 

If the license is not displayed click on the Show Cancelled checkbox.

On the page that is displayed, click on the invoice you want to download. NOTE: If Account Invoices are not showing up, 

send a link to your Youtube channel to support@tubebuddy.com and let us know there are no invoices.

Once the invoice is displayed, click on the Download invoice Pdf button.