Disappointed, poor customer service, poor systems

So disappointed with this company, again. I made a purchase online of really important items with the hope that I'd collect them today. I received an email after midnight that some items are cancelled. I tried to place an order again, but was informed that I am unable to. I also received an SMS that I will only be refunded in the next 5 to 10 working days. I send an email regarding this and how it inconveniences me. I call after 9am and speak to someone in customer services who cannot help me and refuses to transfer me to the finance department. Offers no solution whatsoever. Now I have to order again and collect items later this afternoon because Makro allows customers to buy items that are not in stock. With all these mad road accidents because of the time of the year, I have to travel later today on the 24th , when people will be mad drunk and risk my life because Makro does not have simple settings in place. If you have 10 items or less, why do you still show them as available for online buyers?? Or can't you put the quantity of each item online so customers know what they're putting themselves into??