Most of the time, people purchase their games through their Xbox Live account. It's just convenient. No store shopping, no discs to get scratched, no having to replace it, and it's on your account for you to simply re-download should you ever need to replace your game console. And another plus side, it's more convenient for you to 'return' and get refunded if the game does not pan out to a gamer's expectations.
So how does one get a refund from Xbox? It's actually straight forward, and very simple. When you created your Xbox live account, you were also creating a Microsoft account - or you were linking the two. So all of your Xbox purchases are kept in your Microsoft account purchase history.
So get to a computer, go to www.microsoft.com and log in. To the very right, select your icon for your account. Up along the top, go to Payment and Billing. Along the left hand side, you'll see Order History. Select the game you want to be refunded go to order detail and get that order number. Or you can go to the support tab in the Microsoft website, and click on the live help button. The Virtual agent will open a chat with you, and you can type "I need to get a refund." From there, follow the prompts and answer the questions the virtual assistant asks you, and it will process your refund for you. Easy and straight forward. However, there are a few important guidelines that you have to follow to be eligible for a refund.
You do have to have launched the game at least once, and played it - but it has to be played less than two hours. And it has to be within fourteen days of your original purchase. Also noted, that not all games and apps are eligible for refunds, and neither are downloadable content, game add-ons or season passes.
If you pre-ordered a game, make sure to follow the rule of fourteen days. And in order to get a refund on it, you'll have to wait until the day after the launch of the game. Unfortunately if you try it on the day of it's release, you'll need to wait another twenty-four hours before you are able to request that refund.
Other than those few guidelines, it's relatively easy to get your money back. Refunds take anywhere between one to fourteen business days to show up in your account, according to how your bank works. So be patient, and check in with your statements often until you see the charge returned.