For digital worksheets, there are downloadable after you had made your payment. So, there is no any email will send to you except you cannot download the worksheet(s).
Step 1: Enter 'Shop'
Step 2: Log in
Step 3: Go to 'Orders'
Step 4: Click 'View'
Step 5: Click on the worksheet name to download
I hope this article helps you.
If I can be of assistance, please do not hesitate to contact me.