Agreed. Why would anyone call the police to report a robbery, but then refuse medical treatment if they were punched, kicked, and had a “B” carved or scratched on their face with a knife? It makes no sense.
Maybe she didn't want the attention and photos getting out.
She survived the attack and that would be good enough for me too.
Obviously the wound by the knife on her face was not bad enough to warrant a hospital visit and unless you are completely pummeled from your assault you generally don't have to go to the hospital for that either.
Like I said, she probably didn't want any MORE attention.