Consumer law degree?

Just went through a mess with a seller on the Bonanza web site.
Received a 4k UHD blu-ray with digital code. Tried to redeem code with no success.
Then I noticed, the packaging of the item I received and the one in the advertising, were not the same.
People are removing digital codes from blu-ray movies, then re-packaging them and re-selling on sites like eBay or Bonanza.

In my case, the digital code seems to have been removed from another package and inserted into the one I received. The item I received has no mention of 'Digital Download.' This tells me, the digital code key/sheet is false.

I've messaged the seller asking for  a return and refund.

Oddly, the item I expected, currently sells for $40+ when found. I paid $28 for the 4K without the digital code. If I can live without the convenience of the digital code, this would be a good deal.
The lowest price I could find. If I had a 4K player.
   That is the reason I wanted the digital code. I could watch using the web as a 4k player.

   Solution: I found a 4K copy of the movie on the web and downloaded that to one of the drives I reserve for movie storage. I now have the movie available for streaming without using a digital download code, or a 4K pkayer.

   I'm still going to give the seller one star for selling a fraudulent product.
   And give a negative review ("Fraud!").

   You have to read the ads like a lawyer reading a contract.

   Be careful. Stay safe. Be patient.