If you've completed the requirements, then you just need to wait. The player stats related to the achievements do not update immediately, and I think there have been problems with the script that is supposed to update them daily. I've heard from a few people it can take a while to get them, but they should be awarded eventually.
If you don't get the achievements within a few days, try posting in the bug reports forum to let them know about the problem.
1 for merely playing a PvP Game
1 for Winning 1 Game
But how come I havent gotten any achievement?
Achievements related to player stats will only be awarded once the profile has registered those stats, so you need to wait for a manual or automatic update. They do not update immediately, but at intervals.
If it takes longer than a few days, you can file a bug report here if you wish to alert developers of the problem, although many already have. Then you wait. They will get updated eventually and your achievements will be granted.