Makro Cape Gate

I have ordered microwave from Makro and when it was delivered I found that it was faulty and I requested the same day pick up which was done after weeks. Upon receiving the sms of it being taken to repairs. I called Makro and told them that I want them to cancel my order as I will not be taking a repaired microwave when I have just bought it. I have called the Cape Gate store and their contact number but still no help . I see now they are trying to deliver the microwave that I asked them to cancel the order and refund me. Both contact centre and Makro Cape Gate are not helping me in this situation and I am not sure what else they want me to do. I need this order cancelled and my money returned