Fixing Rear Bumper Mazda 3
 

The rear bumper on our 2012 Mazda 3 sedan has a portion that is lifted from the body panel it mates to. I'd like to get it back in alignment again but am not sure the best and safest way to do this. I don't want to force it and break plastic.

I attached photos and if you have any tips it'd be appreciated if you can pass them on.

Thanks!
https://cimg2.ibsrv.net/gimg/www.maz...4ce4e3aa23.jpg
https://cimg3.ibsrv.net/gimg/www.maz...e6e925e314.jpg