Bad service and unable to do the work contracted to do

Worst service from the owner Darren and his company. He Quoted on a job hor our complex and we paid the 80% deposit but he could not do any of the work he quoted on. We then requested a refund of our deposit and after several promises and many phone calls (which he never takes), we have had to revert to legal action against him. Do not do any business with D-Sec Security or the owner Darren.