Granular control over moderation?

Is it possible to have some points automatically approved while having others require moderation? I would like to use user points for discounts on an Ubercart site (which seems to work). The problem I have is that I need to moderate the points for posting comments etc. but I need the points to be deducted from a user as soon as they use them as a discount. Currently a user could use their points again and again until the deduction has been approved.