Just take a ride to the facility and talk to the AD in person,...let her tell you why she hasn't called back or called you without a call request by you to book your act?
Going to the administrator over her head will lead to bad things,....
then there's the possibility that the AD doesn't like your entertainment act and stays clear of answering yours & hundreds of entertainers requests all day long even tough the residents seem to like you makes no difference,...it's only one of so many NH's out there just move on to the next, it's their loss!..it's all part of the NH gig game that has to be played and endured from booking, calls, waiting for payments, etc, etc, ..

good luck