I just got off the phone with a Microsoft employee on how to cancel your purchase.
Call 1-800-469-9269, they will take a discription of why your upset and want your money back and submit it.
Afterwards they will send your phone or email a verification number or code. They will then access your Microsoft account and cancled it for you. THEIRS NO WAY ON MICROSOFT.COM to handle this your self.
Pick up the phone and cancel if your upset about their being no match making system. Very fast fix and got all 85$ still.
Your money will not be taken from your account untill ten days prior to launch also so cancled before you forget.