Coming from a campus where girls WILL drop a chapter based on whether or not they can afford your dues, we make it very clear on philanthropy night what the dues are.
Dues should never be some huge chapter secret. A range that was published may not work if you have a cap of X amount and it really is important. Why even look at XYZ if all you can afford is LMN? And why should they look at you if you're not an option for them either?
I can not imagine a chapter NOT telling the PNMs what dues are. Most chapters (that I know of anyway) have new members sign papers saying they'll be financially responsible for dues if you are 18 or older and will face collection agencies if they do not (although apparently some have parents co-sign regardless
). I'm wondering if girls at these chapters ever see those papers or if they only need a parent signature.