For the next 60 days, with the purchase of an HTC One M9 at Verizon, customers will receive a $100 Google Play credit to use towards music, movies, games, or apps.
The offer is available exclusively on the Verizon HTC One M9 between 7/1/15 and 8/31/15. A credit activation code will be emailed after submission of Proof of Purchase and other requested information at www.get100GooglePlay.com. The offer expires on, and must be added to a Google Wallet account by 9/30/2015. Once added, a credit must be used on or before 9/30/2016.
For further details check out the HTC site.