Failed to refund me a month later

I ordered 4 steel cabinets and 2 swimming pools from the online store. I was contacted and informed that there was only one pool available. The order was adjusted, but I was still billed the full amount. After my first complaint, someone phoned me to let me know that I would be refunded. Its been a month now, and I still haven't been refunded. Can I please get my money back!?!