Rear Bumper fully damaged of Accent. What should i do buy original or duplicate?

I just bought a used accent model 2010. I was driving it on a highway from agra to new delhi and as soon as when i entered new delhi i got stucked in a traffic jam. At that time while accelerating slowly slowly in a concern that it should not hit anywhere a bike rider came and hit his bike on my rear bumper

the original bumper is costing too high what should i do buy a duplicate one or a original one.

Bumper is something on which you can compromise, just buy a duplicate bumper but only thing you need to make sure that it fixes properly in brackets else they are good, sometimes better than original as I once used a duplicate bumper which was very very flexible, it never broke , only had paint issue but it never broke as it was very flexible.