Dishonest kind of services

I took my car (hyundai I20 2011 Model blue) on the 25/04/2019 to J.A.G Auto Tech on rifle range road ridgeway for suspension job, when they were done fixing my car after i paid over R22400.00 I get inside my car just as i was about to test drive it I noticed the crack on the windscreen, which was not there when I left my car for repairs. I immediately went to back to enquire about the chip and they seems to know nothing about it and called the guy who was working on the car and lady who did the job card , who both said the chip was there when I left the car we argued about this for some and was finally told that there's nothing they can do i must go to PG glass for a report on what caused the crack which I know very well it was caused by them when they were fixing my car, on top of that the suspension is not fixed to my satisfaction because when i brake the still a scratching sound on the right side of the wheel which I still need to tell them about