Bad Customer Service

I bought a fridge and a microwave online and paid via immediate EFT and then a few days later I received an email saying that I have cancelled the order and I will be refunded in 6-5 working days when I did not, I sent an email to say I did not cancel the order, I also phoned HI-FI Corporation's call centre and after being on hold for half an hour the lady told me my order has not been cancelled and will be delivered. Today I received a delivery only for the microwave, I called them again another lady with a bad attitude answered an told me my fridge will be delivered next week, the delivery terms on the online shop says 2-5days and 5days will be over next week. I went on to the website and sent a chat to them and was assisted by Chelsea who kept me waiting for another 30minutes while checking the order and came back to tell me there are no updates regarding my order and she will lodge a formal complaint for me I must wait another 24 hours for feedback, It looks like no one has an idea what they are doing, my order number is ***.