They tried to get me to donate to help stop sex predators. They said I donated last year but I didn't. Sounds like a scam

I've had numerous calls from this number each day.  Sometimes nobody's on the line and other times a woman will ask for my boyfriend but he's always out.  I ask to take a message and she says she'll try another time.

They asked for me by my first name and when I said 'this is' they hung up. I don't know what kind of scam this is but I don't like it.

got calls from this number

Numerous calls from this number, never anyone on the line ? Probaly a call centre from over seas, wish this could be blocked.