Failure to honour guarantee

This is one a one man company with several Facebook pages under different names including Access Appliance Repairs & Appliances Repair Company. He actually fixed a fridge, dishwasher and tumble dryer for us. There was a problem with the tumble dryer repair & he promised to come and sort it. After repeated promises he blocked our calls. This despite the 6 month guarantee on the invoice. He is a hit and run specialist. STAY AWAY