To get your credit, head to this address and follow the instructions. Google's system uses the Cast extension for the Chrome browser to detect Chromecast and Android TV hardware on your local network, but Google also seems to "remember" at least some devices that have been connected before but are no longer active. The Play Store credit is redeemable for apps, in-app purchases, movies and television, music, and books - anything that's sold on the store.

UPDATE: 2015/11/07 2:46pm PST BY

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It looks like this offer is also good for Chromecast Audio units. Huzzah!

Source: Google Cast offers

Via: Slickdeals

Thanks: Ryan Rij