I wont be supporting this, proper planning prevents piss poor production. If you want to give them a refund or make it up to the 1/6th of the people who missed the promo cut off with CL packs or something else, thats fine, but the promo should stay at the intended supply.
Next time only sell however many packs are in the presale, this will allow them to sell for a premium on secondary markets and also be more definitive