Disappointing service from Game Online

I placed my order for essential goods, baby products to be specific on the Game website toward end of March. They then delivered half the order in mid April and have R500 worth of goods outstanding on the order. My baby arrived the week after, and to my frustration these much needed items i still dont have. I have called the call centre 3 times and they tell me they have no stock of which I asked them to cancel the order as I need to go elsewhere to find these items. They agreed and I sent my banking details it's been over a month now I am sending weekly emails to follow up and no one is responding to me. Please can you just give me my money back.