We check all prices at the time we send the emails about our content-rated book deals, however, you should always check the prices before you buy because mistakes do happen. Please let us know here if a book that should be on sale isn’t discounted, and we'll pull it from the site until the author can correct the problem. You can report the wrong price on each book's listing page.
If you accidentally buy a book that wasn't discounted, you can return it to the vendor where you purchased it. Just do it as soon as you can because the various vendors have different rules on the return of ebooks.
Note that the pricing we send in our emails is current for the US only. We urge authors to discount everywhere their book is listed, but sometimes they don't or can't (like on Kindle Countdown deals that are only available in the US and the UK).
Thank you for understanding. We promise, we're doing our very best!