Delay tactics in delivery

I placed an order yesterday around 10:00 at Fourways Builders Warehouse and was promised that it would be delivered today. Today I called Builders call centre and I asked when are they gonna deliver. The call centre attendant answered me arrogantly that they don't have a special time to deliver, they can come anytime during the day. I asked her must we wait for the whole day waiting for delivery and she said they'll call us one hour in advance. One hour?!

I called again asking to be put through despatch department. This time I spoke to friendlier call attendant who promised that a despatch manager Simon will call me. He never called.

I called again and this time I managed to get Simon. I asked about my order and he said they'll deliver tomorrow! I referred him to the despatch policy which says if you place an order before 14:00 today it would be delivered tomorrow, meaning my order was supposed to be delivered todayday since I placed an order yesterday.

Simon said the bricks are not in good condition, they are still waiting for new bricks from the supplier. That was the only time I was informed of this! He even said they can deliver today with cracked bricks, imagine! This made me angry because no one bothered to tell me about delays in my order. Mind you I even took leave today with the expectation that my order would be delivered today!

He even had a nerve to tell me about a deadlock they have with other deliveries as if it's my problem. This is really frustrating and it is unacceptable from a big business like this. It would have been better if they had communicated in advance of the delays. And they should follow their own policy about deliveries.