Not so exclusive treatment

I placed an online purchase at this store, testing their system in order to purchase online in future. <br> Their online system, the mail from the management and call from courier are talking different stories. One says my order was shipped and received, while the system says processing order. Courier cannot find my address therefore to date my order is missing. I get a feeling someone is taking me for granted, thinking I don't unstertand the online purchase or perhaps my order is very low to get management attention. <br> I just want my order or be refunded, no future dealings with this store.