Poor customer service

I ordered a watch and I received an email confirming my order and notifying me that I can pay an additional R55 for quicker delivery.I did pay the additional fast delivery fee and used my order number as reference but my oder was never delivered. When I enquired they told me the order was shipped incorrectly and would take an additional 40 days,I should indicate whether I stil want it or not so that they can refund me.I opted for waiting the additional 40 days.40 days lapsed and I still did not receive anything,I then requested a refund,they asked for banking details which I did send but a month later I'm still waiting for my refund,everytime I try and contact them they give me the same reply "we will check and get back to you by before the end of the day"...