Resort Notification Services Scammers? Las Vegas, Nevada

My mother, who is in her late 80's,  received a call to attend a meeting to possibly eliminate her yearly maintenance fees on her timeshare.  She agreed to come to a meeting on Saturday 4/27/13 in Ontario California.  I was concerned about this meeting so I looked up this company on the internet.  There was a report about them, saying that they were high-pressure sales people and they get people to pay large fees to get out of time share contracts.  I called these people and they confirmed me that they do charge for this service (after being on hold for 15 minutes). 

I asked what the fees were. I was told that the "sales department" were the only ones who could answer this.  They transferred me to this department.  Of course, no one answered. I was only able to leave a message and my phone number, which I did.  No one ever called me back. I have instructed my mother not to attend this meeting unless or until I receive some answers to my questions.  If this is not a scam to get large amounts of money from the elderly, why won't they call me back and tell me the fees before the meeting.  I think people need to be aware of this company!