There could be several reasons.

I had money on here a few years ago from a bank account I had when I was in college in Philadelphia. I closed the account, and I guess they attempted to mail me my remaining balance, but I had moved.

My daughter’s dad has some on there right now that are credits from Game Stop and also some refund money from a community college and a leftover paycheck from one of his old jobs.

One of my coworkers found out after I told him about the site that he had a couple thousand dollars from a relative that passed away.