It's not working as stated in the Patch Note.
When you are in a team, you will not get any PvP point when you kill your opponent (so far, if your opponent isn't in a team, you'll 100% not get the point, havn't tried if both are in teams tho...)
I thought this was changed in the patch, which allows players to gain/lose pvp points regardless if they're in a team or not.
Now, I've sent mail to Cz regarding this issue, but so far I havn't receive any answer.
Please try to fix this.