I couldnt find this in the FAQ's so maybe I overlooked them, but I was wondering, what happens if the cards I purchased with my tickets come up on my monthly subscription in the future? Am I credited back some tickets or not?

Thanks :)

Quick answer ;-) : They won't.

Your subscription only delivers cards that you don't own yet. If, though, you own all cards so that there aren't any new cards for you that the software can deliver, your account will be credited with a ticket for each of this occasion.

As far as I'm aware they don't. The subscription system should always assign you a card you don't already have. Of course, you don't have a choice about which it is, but that's why subscriptions are cheaper than tickets. :)