Shocking Online Service

I placed an order online Boardmans on 19 April for a duvet, quilt and cushion. The email said delivery would take place in 2-5 working days. After not hearing anything for over a week - I called the call center. They informed me that the duvet was not in stock so they were still trying to source it. I specifically said to them that they should not dispatch the rest of the items as it is a set. On 28 April I received an email saying the order was dispatched. To my surprise when the courier came on the 29th - there was no duvet in the parcel just the other 2 items. I was furious and once again I had to take the initiative to call them. I got so frustrated with the lack of information that I spoke to the manager Carol. I expressed my utter and complete frustration at how they operate - they don't update you if an item is missing - you must keep calling them and still no results. She only then informed me that they don't have the item. I told her to come and collect the other 2 items and give me a full refund. She told me the courier would come on Friday on Monday. Today is Thursday - till now no one has come. How long must I wait for a refund because they are so ***********. And once again I must keep calling. I want someone in Edcon to contact me and get these items collected and the refund processed asap. This is ridiculous and unprofessional behavior and I will never ever buy online again. Order No ***.