No call here either, but we don't answer the phone when somebody calls normally...
from the
DVC website (copy and paste):
Fraudulent Letter/Phone Call Advisory
Disney Vacation Club Members who receive a suspicious phone call or letter from someone purporting to be from Disney Vacation Club or RCI should not give the person any information if they doubt that the person is an authorized Disney Cast Member or RCI employee. In addition, they should report the letter or phone call to their State Attorney General and the Federal Trade Commission.
Members may confirm whether or not the call or letter is from a Disney Cast Member by calling Disney Vacation Club and verifying the information with a Cast Member. In addition, Members may confirm information with RCI.
Members are always welcome to contact Disney Vacation Club or RCI to verify the validity of a contest or offer.