Your prospective clients can't get these on the street - G is putting you in a position reflecting professionalism, authority, competence, connectedness and leverage. Use it!
Only certified people get the promo credits, and they're for new clients - you're so close to overcoming that hurdle, now is not the time to treat it like a token coupon that saves you a few bucks. Having come this far, you are above that kind of behavior.