Delay of delivery

I am extremely disappointed how the staff at Cashbuild treat customers I purchased 10 bags of cement on Friday the 25th they promised to deliver on Monday morning but till today they have not deliver when I contact them they are not sure what to say they are so unprofessional because each time when I inquire they tell me different story as if they are working without supervision clueless and rude this costing me because my project is not mooving my time frame is being jeopardize because of the bad service I getting from the Shop