Terrible customer service again!!

Once again, builders giving terrible customer service. I have made 3 online orders this year and without fail Builders has managed to mess every one of them up. I received a call that Builders would deliver my order today, I made a special arrangement to have someone at the house but no pitched up from Builders, as per my previous order. The first online order was delivered to a different customer entirely! Is it so difficult to do what you say?? You say you will deliver today then do it!!!!! Builders is unprofessional and plain *********** how is it possible to be so useless at your jobs??