She initially said cash but has just rung to say she has a voucher for 15% off with paypal. Am I right in thinking that if she pays paypal she could actually screw me over (I don't think she would iyswim, just don't want to risk it) as I would have no proof of delivery and she could claim her money back? The item is £200 so she would be getting £30 off, and I don't want her to lose out. Should I maybe offer 20 quid off if she brings the cash as promised? Arrrhghhh