We were all greeted with a pleasant surprise yesterday when Google dropped the price of the Nexus 4 down to $199 for the 8GB model and $249 for the 16GB alternative. Well, not everyone was pleased. There's always those of you who purchased a Nexus 4 at its previous price just days, perhaps even hours, before the price drop. And for you, here's the good news. Anyone who purchased either model of the Nexus 4 on or after August 12th is eligible for a $100 refund.
Customers have to manually submit a request for a refund in order to get their hands on the $100, and Google doesn't provide a timeframe for when to expect the money (though they do insist that the refund will arrive within a reasonable amount of time). You have 15 days to take advantage of this offer, otherwise you're out of luck. Get on it, and while you're at it, pick up a couple Nexus 4s for anyone you can think of. The holiday season is approaching, and you will be hard pressed to find a better deal on a brand new phone.
Source: Google Play Help