Bumper damage, best course of action?

Mazda 2, doesn't appear to be any damage to the lights and no warning lights on the car. Essentially as a result of a 2-3mph bump. Wondered how likely it was that there was more sinister damage underneath or is it likely just the front bumper that'll need sorting? Also, guessing this can't just be repaired? Absolutely gutted as I've only had her for a year.