Poor service delivery

I recently visited the Sportscene website and found a great deal on a Puma backpack, so I decided to order it and pay for the items. A few days later I receive an email from Sportscene saying that unfortunately my order had to be canceled. I contacted the customer service number and an agent told me I would receive a refund. I am very disappointed with Sportscene as they advertised the product and could not deliver. I would like Sportscene to deliver the backpack to me when they get new stock at the price they advertised, and will not accept a refund.