2012 Yaris - Dent in rear bumper, requesting any tips to fix or expense estimate?

[DaynhaN]

I was recently backing out and I once I turned my head to look over my left shoulder from my right to see if there were any cars in the other direction coming, a car speeding through the parking lot had collided with the back of mine, this left a huge dent in my bumper and I was wondering if it was possible to heat it up and push it back out without needing to replace the whole bumper? If not, an estimate for repairs/new bumpers would be greatly appreciated, thank you : ) Image posted below.




http://i47.tinypic.com/35n592u.jpg