Greetings everyone, I just noted that this deal is back and working again, this is for the 2019/20 entertainment book, I just bought the digital version via this link and it successfully added to my current subscription to end 1/6/2020!
It works perfectly for digital memberships, even though it says "Do Not Use". Get in quick as I doubt this will last long.
The pricing is the same, $15 off digital copies of the Entertainment Book. Plus a 1.25% fee for the use of debit or credit cards.
Update 10/4: Also alternatively, KFC link
As always, enjoy!