Placed 2 orders online. Both out of stock

Have ordered online twice so far within a few weeks of each other. Both orders have been out of stock. I have not been refunded for the 1 order and the other, I asked them to give me the stock now that it's back in stock, for the same price as the original order that I placed which on special. They told me that that they cannot do that because I've already been refunded. I asked a manager to call me, but have not yet been contacted in 2 days. Really pathetic service