Received email on my gmail account to get $5 credit on Google Play for book:
Just for you: $5 credit toward a bestseller
Valid for a $5 credit against the current on store price of a book from eligible titles on Google Play. Your credit may only be applied to eligible titles with an on store price greater than $5 before tax is imposed. Redeem and use your offer by July 31, 2017 on Google Play from compatible Internet connected devices using a Google account. Offer limited to original recipients of promotional email. See Content Promotion Terms and Google Play Terms.
Limit 1 per user. Nontransferable. No cash value. Valid in US only. Valid only on 1 book from eligible titles on Google Play. Not valid on book rentals. Credit may not be combined with multiple books or any other purchases. Cannot be used in conjunction with other offers or credits, except Google Play Credits. Age restrictions apply. This offer is open to specific Google Play users based on past purchase history. Promoter: Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA.