Costing me money by not delivering when specified they would - no customer service or communication

Purchased a Samsung aircon online from Builders and added installation - I was told it was scheduled for delivery and installation yesterday 17 November before 10am. By midday I reached out to customer service to confirm and was assured it would be done. By 6pm I realized it was not happening. Today I got an sms about my Builders order being delivered, however when delivery came by they were dropping off a different order (for a patio umbrella that I ordered days after I ordered the aircon). How is it possible that the later order is delivered and the other is not? Samsung Air offers the same price for the same aircon, except their installation pricing is cheaper - the only reason I went with Builders is because they had the aircon in stock in my town and indicated it would be done faster. I wish I had gone with the more affordable option directly from Samsung. I’ve reached out to customer service twice today and have received no response. Am I expected to sit at home every day of the week hoping that it will be delivered and then hoping someone pitches up for installation? The lack of communication is unacceptable and the lack of delivery, despite indicating it will be, is abysmal. Should I keep taking leave daily to wait for a delivery? Builders was not only more expensive, you’re now costing me more due to not being able to be at work while waiting for this delivery. If I hear nothing back by end of day then I’ll be cancelling my order for a refund. To be fair you owe me some compensation for loss of income (extra leave taken) due to your non-delivery.