I booked straight through the Disney website and am not DVC. Did you receive a letter from Disney about the construction? I called the number in that letter (it was not the normal customer service #). The first CM gave me details on where the construction was taking place and when I asked her my options for moving resorts, she transferred me to a Guest Services line that seemed to be exclusively for those calling about WL. I was offered the $100/night discount, a switch to another resort, or park ticket upgrades. Nothing was mentioned about a compensation offer until I was transferred to that second line, though.
This is correct- you MUST talk to Guest Services evidently. Our TA took care of ours but that was who did the deal. FWIW, neither the TA nor we have received any notification of the construction to date and last year we did not receive notification of the pool rehab either. The DIS is THE place for information!