Why insist for new bumpers??? Come on Boy! Insurance premium pay karnay ka yeh matlab to nahi k aap Insurance company ko un-reasonable claims karo...Aap jaisay hi loug hotay hien jo khaam khuwaa hi just for the sake of taking claim is tarah ki puthi puthi harkatein kartein hein...For God sake Give Honest Opinions.. Pakwheels should be considered a place to get Honest Opinions..
Raza1 has given good advice.
Touching waisay bhi metallic paint mein nahi ho gi, full bumper needs to be re-painted.
If your bumpers are in good shape i.e not broken from anywhere, no need to change.. Call the insurance and tell them that you want to get the bumbers re-painted because of scratches... They,ll guide you further.