I have a potential non-payer situation. She won the auction last friday 5/25. She told me she'd mail out a money order which I haven't received yet. I sent her an email last thursday to see if she sent out the payment ... no response yet. So when I file a NFB w/ eBay, one of the steps says to call the other party. Has anyone done this before? I feel a little awkward calling the person. Any advice?