This seems legit. The other day I spotted a series of weird ads stuck to bus stops in the area: some are for minerals that will cure pretty much anything, some are for cedar to keep away pests, and some similarly odd ones.
They're all made in the same style with similar generic email addresses: you know something is legitimate if the emails all end in a number. (That said I think cedar actually can keep away some bugs, though I've never heard of it for mice or rats.)
Always something interesting going on at our bus stops. That said, good for Miss Sydney trying to be an entrepreneur.