Shocking work and service

Accepted a quote to have my roller gate track replaced including the lintel. Paid the deposit (75%), had to wait a month before the work was done as got endless excuses. When Justin came to do the job I told him that I felt I was getting the raw end of the deal as he had decided not to replace the lintel. Express my dissatisfaction with his service but he just had excuses. He totally messed up the job and admitted that the track had been cut short. He was supposed to supply me with more track, but am still waiting. Also didn't put in enough coach bolts plus didn't align the one track properly so my gate banged into the coupling when closing. He actually had the cheek to ask for more money even though the job wasn't completed. Have given him 2 opportunities to fix the mess but never pitched. Have sent him an email requesting a detailed quote as well and pointed out that he can't expect me to pay more when the job isn't completed. He actually owes me money. No response. Had to get someone else to repair the mess. Would never use JAC'D Up Automation again.