[Closed] insurance car repair problems

After dinging the front of my car, I've been back to the insurance approved repair centre twice, the first time they missed half of the job saying "I'm sorry, I didn't think you wanted that doing" and the bits they did do were of such low quality/badly fitted that they nearly fell off. They also threw away a few trim pieces and never re-fitted replacements.

Just got back after the second visit and while they've tried to address some of the issues, they've created several more!

Do i HAVE to take it back to them again? I really don't want to give them more oportunities to balls things up