Don't trust the RENT A CAR and it is not good to negotiate with them for discount. Go to any garage with proper paper they will repair it for reasonabale price. I had similar experience from Petra Rent A Car. They told first it will cost less only and made a police report and submitted. But they charged in my creidt card QAR.2000/- and negotiated with them in a good manner many times and even they didn't provide any invoice/paper of repairement. They say they repaired at Nissan Service Centre, when I contacted Nissan Service Centre, the statement was wrong. They simply charged without repair. The damage is very minor on rear bumber. Complete replacement of rear bumber will not cost more than QAR.1000/-.