Pay $45, Get $50 Google Play e-gift card

This recurring promotion is back at Amazon. You pay $45, and get a $50 Google Play e-gift card by email using coupon code GOOGLE in the Amazon shopping cart. That’s a 10% off discount. You can get a better percentage during various B&M store gift card promotions, but typically the percentage is achieved through store credit or rewards points. This is a straight-up discount, nothing else involved. It is a limited time offer, expiration time unknown (= when the coupon stops working).

PS: Google Play gift cards can also be used towards subscriptions initiated from Google Play, as long as that subscription service supports billing through Google Play (eg HBO NOW). You can adjust it at any time under the Subscriptions section of the Google Play Store website or app.