Just curious if anyone has had any luck in reporting a missing stay request and receiving Marriott Rewards when the stay occurred a year and a half ago?

Years ago I accumulated a small amount of Marriott Reward Points and recently learned that they hadn't expired. About a year and a half ago I took a business trip, stayed at a Marriott and besides my room I paid for three others. I just took up this miles/points hobby (obsession) and was just wondering if anyone has reported a missing stay from a long time ago.

I'll probably give it a whirl & see what happens--the worse they can say is "no".