If you are planning to buy the game code from this website, make sure you use it within 7 days of your purchase.
I bought two codes as there was a deal going on, thinking I will use it later. But later when I tried to use it, it did not work
I asked the support desk and they told me to contact Microsoft, and MS confirmed that my code is being used by some other account other than me.
They asked CDkeys to contact if they need more information. I went back to the support and they said even though we asked you to contact Microsoft but we also have 7 days non refund policy.
It felt more like I was screwed and was asked to resolve it my self and then CDkeys had the trump card of 7 days policy.
Never buying again!