I had trouble with this story. I think Jennifer learns something about selfishness but I’m not sure if it has anything to do with Christmas. I’d also like to hear some suggestions about better ways to conclude the piece.

The ending was a bit abrupt for me.  Maybe a bit about her putting the pieces together from the beginning.  Her anger at the non-gift, her sadness about the faces of poverty, her sudden realization of her own selfishness. 
I like the idea but the story lacked some impact that I think you were going for.