A support case was created for you and you should be contacted shortly by a Customer Support Representative, if you haven't been already. You can view and update your case at the Activision Support website. After logging in, go to "My Support" then "My Cases".
It seems like you may have some trouble with matchmaking. I would recommend you have your internet provider check the steps found on this link to find a much better matchmaking process: http://support.activision.com/articles/en_US/FAQ/How-does-matchmaking-work-in-Pu blic-Match/