I diddnt have internet today when I reached level 20, so I never got the achievement. Now that Im back online I can get achievements again. I checked it out by playing slots and got that achievement. except I haven't gotten the one for getting level 20. Anyone know how i can fix this?

anyone?

outa luck buddy. unless you have a save right before you lvled to 20

do you need it for some reason?

Thanks for the tip, I actually did so i just went out and killed a bunch of innocent people. Then once i got the achievement I loaded my most recent save.