Should a 4-5 inch scrape on a Jeep cost $750 to fix? on 2007 Jeep Grand Cherokee

I got into an accident yesterday where I bumped into a Jeep's front bumper. So, I left a note for the owner with my contact info. Well, today I got a call from an auto body telling me that it would cost about $750 to repair because they will have to remove the bumper, repaint it, etc. I don't know much about repair costs... Am I being ripped off here?

Asked by for the 2007 Jeep Grand Cherokee
It could run that much, As the bumper has to be removed, Sanded and prepped then primer and paint to match then clearcoat has to be applied. Once that's dry then the bodyman has to reinstall the bumper. Paint materials alone could run 2 to 3 hundred dollars.