Sounds like compitition getting out of hand! I'd speak to admins abuout it too. Show the history, two days on isn't irrelevant....some people go so low, its sad.
Don't let that hold you back! Also try some other area, library, schools, local churchs - tell them tht you'd like to maybe drop off some flyers or to notify them that if anyone is looking for daycare you're available. Grocery stores that allow ads on the bultten board. If yu have those central mail boxes put a flyer on there too....
Good Luck!