Shocking work and service

Don't ever use this company to repair your vehicle! I took my car in to have the bumper replaced. Small job. They took 3 weeks to complete it. Somebody must have been driving it as there was extra 30km on the clock when I collected it. It was stripped of old parts on the second day then stood outside in the wind and rain for 3 weeks. Spent 5 days at the neighboring mechanical workshop to have the brakes checked (which takes 1 hour). Upon collection my digital radio clock was reading "0000" and the dealership is unable to reset it. error message comes up. Also my digital time was changed. There was a new whining sound coming from the front left bonnet. I took it back to them and Jonathan, the manager, said it sounded like a power steering whine. He must have heard it when test driving it but never mentioned it to me. I wonder why.... hoping I wouldn't notice it. There was also a plastic cover front left missing from the underside of the car. He'd been waiting for this part for a week already but clearly decided to hand my car over without it., assuming I would never do a check under the car. There was still spray paint in places they didn't bother to clean off. The 2nd hand bumper piece that they replaced and resprayed had a chip in it and masking tape lines. It was clearly a rushed shabby job. When I queried the use of 2nd hand parts as opposed to new ones, he told me my insurance company requested this. He then backtracked in his follow up email saying that he had used new parts. I've had my car assessed by the dealership who confirmed the power steering pump has ceased. It was NOT ceased when my car arrived there. 2 days after collecting it my battery went completely dead. I had to replace this. I followed up with my insurance company which took me another 5 weeks to conclude. I was without my vehicle for 8 weeks in total as I was advised not to drive it. This was realistically a 2day job which they dragged out for 3 weeks.