Yes, you get them via email when you subscribe but you should also get sent some just for having an account. FYI, they haven't issues codes for a while now. Lately they've been doing the 10%, 20% 50% off of $10, $20, $50, respectively. I might be off with the $ amounts but that's all i've seen for the last few months.

Also there are site that give out there own codes - you have to follow or subscribe to them specifically to catch it in time. I know MixMag used to give out codes.