I have elements 11, box not download and ther is no serial number anywhere in the box. Chat did not help.
Check your receipt for a redemption code, then try this:
I do not see a redemption code on the receipt/packing list.
Then you will probably have better luck with wherever you bought it than with trying to get help from adobe, I'm afraid.
The problem is I bought the software from the Adobe Store not a retail store.
You should have gotten a redemption code or else an email with a serial number. You'll need to contact sales support.
Do you have a link, I always have problems getting to the right place on the site.
Try this page: