The Promotions part of the email says "You've saved $2.00 off suggested retail--that's a 20% discount! Additionally, your free PDFs are a $9.98 value!"
Except, the PDFs aren't free; that's what the subscription is entirely for :)
It doesn't really affect anything, but bringing it to your attention to address in the future.
Not that it's important, but the order-creation email for my CotCT hardcover had a glitch in that area as well:
Additionally, your free PDF is a $59.99 value!
That's the price for the physical product; the PDF value should have been $31.49.