Don't use Appliance Man, they are just useless R500 collectors

Called appliance man for a Samsung Dishwasher out of warranty repair. The dishwasher makes cracking sound and the pots don't get clean well when at the bottom rack. The "technicians" arrived, checked the dishwasher and said he can't see any issue. So, dishes come out filthy, but there is no issue with the dishwasher. The sound comes from the pump and it's "normal". ****** useless R500 collectors