Unprofessional and horrible service

I went to builders warehouse boksburg on 10/08/24 to purchase some items to redo my bathroom. I was told they can deliver it. They told me it will be delivered on Tuesday 13/08/24. I got my guys ready so they can start work as soon as the items arrived. Waited and waited. Started calling all over cause there is no direct number for boksburg branch. Eventually found someone that knows something and was told ther was some problem and they will deliver today 14/08/24. Then around 10 o'clock i got a call from them telling me they don't have enough stock of the mosaic tiles wich the sales lady was supposed to tell us when we bought it qnd they will deliver as soon as all is there. I then told the they Will deliver TODAY and the mosiac that is short will be delivered at their costs. If the res of the mosaic tiles are not delivered bay tomorrow 15/08/24 i will buy somewhere else and hold builders warehouse boksurg liable for the costs. Most unprofessional service i ever received from a large group like builders warehouse.