My first instinct would be to say it looks like a tip strike to me....
Sorry to see a nice new plane damaged, never a good feeling!
Good thing is if repaired correctly, it WILL be strong and you may not even notice any difference when flying
Pour boiling water over the creased area (or, since it's near servos, maybe a better solution will be to place a wet towel over the area and iron it with a clothes iron set to 'nylon' or 'silk'), and allow the foam to come back out to the original shape. Rub in or inject some laminating epoxy, and weigh the parts down.