Limeroad — Product under cut the price scheme

I order my product under the cut the price scheme. Date of delivery is 6 july but they can't deliver then i sent a mail they said we will send you within 48 hrs but again not sent again i sent a mail they said we dispatch your product within 1 week after again not dispatch my product. Now today they said your order is out of stock. And we can't deliver your product this is game rule. They become a people fool. But my question is that if that product is out of stock why that time not show that product out of stock when i'm playing cut the price scheme game