Unprofessional Spray paint job

My car was in a accident and my insurance sent my car to kleynhans panelbeaters , this will be the 3rd time that i am going to send my car back to them. my car was sent back to them on the 9/02/2015 for the 2nd time to fix paint that was pealing of the bumper that they have sprayed . the fist time that i have sent my car back it was because of the primer showing though the paint on the bonnet that they have sprayed . When i got my car back on the 13/02/2015 , I saw the bonnet is showing though again and that there is yellow overspray on my fender ......<br> <br> <br> i am fed up with them every time i have to send my car back for a week but when i get it back the paint job does not last for more than 6 months ...