Same thing's been happening to me, but it happens all the time for me. I've kept getting paired up against level 20+'s ever since I was level 10; I'm now at level 11. The problem for me is that I'm not staying alive long enough to earn credits, but I'm getting enough kills to keep my skill at 2000+.
Start getting used to it I'm afraid, at lvl 20 you'll be playing 30's (or 40's if you're me ^^), at 30 you'll be playing 40's and so forth. If you really want to just play people your level, devote some time to mass ingame suicide to keep your skill level low =D