When you DO make an 11% off offer, and something is sold out, at the least permit people to order the item with the discount and offer it to them when it arrives.

Then make sure that the sold out items are replenished in a TIMELY manner, not 2-3 months later when you happen to get the next boat shipment. Do something about the delays PLEASE!.

People will wait a week, maybe two... for a good deal and item... then they look elsewhere. I know I do.