Cold call reseller?

[xipetotec]

Hi all, my mother has been a member since 2002, added on points twice during that time. Once in the early years, bought from a resale site, second time bought from Disney.

This week, she got a cold call from someone asking if she was interested in selling her DVC points. (She's not, at least not yet). Has this happened to anyone else? Not sure if it's a scammer or actual reseller cold calling leads.