Drain Sense Drain Service Ltd

I asked him to install dishwasher, he came and said the plug is Electrition job he only pushed the dishwasher inside and hooked up the drain and water. He left the dishwasher loose didn’t adjust the height and didn’t secure it. I have to call someone else and pay again to install the dishwasher.
When I told him he didn’t finish the dishwasher he started yelling at me in my home.