What should I do when someone keeps getting my name wrong?

So I have a course in uni where we have to do weekly projects. In my assigned team there is a person (A) that keeps calling me with another member's name, and call that other member by my name. (let's say that my name is Lisa and the other member's name is Bella, she calls me Bella and calls Bella Lisa). I don't know why A keeps getting confused as we don't look alike with Bella, we don't hangout together and we don't even have similar names. We also have other team members whose names have more similarity (like Cristina and Martina) but A only confuses us. Whenever A has done that I have stayed silent/didn't make any comments as I got confused on what A was talking about, but other people and Bella have corrected her. What should I do if A continues to call me by the wrong name?