Please disregard my last post. I felt pretty sorry for you so I read your history. Actually it appears you did send in an address to be included in the Genesis block and your funds were sent there.
http://chain.nem.ninja/#/search/NDGQNH-Q3RPE3-6XLLXF-OEBMW7-BJNZCC-FPEXGE-3EBLAt this point you need to find your private key that you hopefully saved in a file somewhere or printed up. In all crypto you need you private key, so if you've lost that there is nothing anybody can do, but if you have it all the XEM you bought will still be in your account.
Here is a tutorial for you to follow.
http://blog.nem.io/getting-started-with-nem/