I sold a dvd to someone for 99p. She paid by paypal but not for delivery, she'd ticked collection? I noticed she lived far away so messaged and asked if this was right. She said no she'd paid for postage? She hasn't! I forwarded the statement showing she'd onoy paid 99p and have heard no more? It's been days now. Not sure what to do? I don't want her leaving negative feedback saying I haven't send it but tbh the postage would be more than 99p.