Shockingly bad service from Incredible Connection

I purchased a projector over 1 month ago at incredible connection online for R4000. The projector never arrived and I have not been refunded. I was advised that the projector was out for delivery with the couriers the day after payment was made. The projector never arrived. Multiple calls to their help desk did nothing except "escalate the issue to management". 1 month later and I have still not received the projector. I received a sms last week to say the projector is now out of stock and I will be refunded. Yesterday I received an sms to say my call has been successfully closed. Over 1 month now and I have not received the projector nor been refunded. Multiple calls to the 'help desk' and all I am told is that I must not worry, I have been refunded successfully, I must just wait, but still no refund is reflected in my account and Incredible Connection refuse to help me futher. If the projector was actually shipped the day after purchase as I was told, how can it now be unavailable 1 month later? How long do I have to wait for a refund? Im absolutely shocked to be treated like this from such a large well established company. I will never shop with Incredible Connection again.