Builders Warehouse Midrand can't deliver the purchased tiles to client

I bought floor tiles which were on sale online on Sunday 22 Sept 2024 and paid on direct EFT, got confirmation that order was all fine. I'm feeling very betrayed in the fact that Builder Midrand was callled and confirmed that Wednesday the tiles will be delivered so we brought our tilers from Rustenburg, only to get a delivery of part of the order and told that the tiles will be delivered the following day, Thursday we were told that there were out of stock yet if I go online again I can actually order the same tiles. The tiles are not showing that there are out of stock???We queried this and were told that the tiles will be delivered on Friday afternoon then were now told that there is no car to deliver those tiles on Friday but will be delivered on Monday. Why all these up and down statements. Does it mean that Builders in Midrand do not have cars to deliver. The apartment is like 5 mins drive from Builders Carlswald . Why does Builders play with their clients like this? Do they not have a proper online stock management system to show availability? Now I have the inconvenience of Tilers sitting for days doing nothing only because of Builder!!!!!!!!!Please can you deliver the tiles ,I'm incurring costs because of this!!!!!!!!!!