I advertised some painting slots almost a year ago, and one of the people who responded was someone I'd worked with a few times before. We discussed general things about the painting, gave her a quote, and she sent payment in full ($30) with a note that she'd email me references later. A couple weeks went by and she still hadn't sent the images, so I emailed a reminder that I still needed refs. She replied saying family stuff was going on, she'd send the files soon, etc. After another few weeks I sent her another email and got no response.
Since then I've tried emailing both addresses I know of, leaving a message on her LJ account and sending a note on FA, but haven't gotten any reply. What's the proper thing to do for a situation like this? I didn't think to include anything in my ToS about it. Should I just keep the money and wait for her to get in touch? Refund her? I'd rather not leave this hanging, but don't want to accidentally do anything unprofessional or rude.