Since she is not answering your efforts to contact her, a face to face may be the only way to do it. I agree that if it comes to the attention of her employer and she loses her job, that really isn't your responsiblity. She took a risk by telling you she could and would do them for you while at her place of employment. Yes, it would be terrible, but since she is ignoring your efforts, what option is she giving you, but to confront the situation at her job. Good luck, I hope you get it all worked out.