I've no idea how she knew. Just that someone else had said someone had called. Or rather that 2 people had called.
She knew it was 2 different people, not 2 seperate calls from one person.

I've put it out of my mind. I'm just assuming they got me confused with someone else somehow. I have no other explanation that I can think of.

I might call them tomorrow & see if I can find out anything else.