Terrible Service!!

Wr ordered 2 items from their online store to which they debited our account for the full amount. They took a few days to process the order and then I was advised that one of the items is no longer available and that a refund would be done. This was on the 22nd of July. Yesterday I received the one item they did have. I have been mailing them and messaging them as to when the refund will be done and to send me proof of the refund and I am not getting any response from them at all. I find the service rather appalling and the fact that they advertise a product as available and then tell you its not after they have taken your money, to which you get no feedback as to what is happening. Very very disappointed at the horrible service Im am receiving.