Under Armour cancelled my order due to a pricing error on their side

I purchased 2 pairs of Under Armour HOVR Sonic 4 running shoes which were reflecting as on sale on the Under Armour website. On the day I was supposed to receive my order I was sent an email that my order was cancelled and being returned to the warehouse due to a pricing error on Under Armours side. I have sent numerous emails and have received no response. I want my orders to be delivered - I do not want a refund.