<prompt> Human: I sold a 40 nice Restaurant gift card to a co-worker for 30 as she mentioned she was off there that evening with her boyfriend. I thought I was very clear that I expected 30 in return for using it. She uses it all and then says she thought it was a gift and refuses to pay or talk about it.I opened the first discussion with Want to save 25 at the restaurant? This was a cash value gift card not a discount code or offer. It still had over a year on the 24 Month life. She says she thought I was joking when asking for money and that I wasnt going to use it I did say I wouldnt use it to mainly make her feel better about taking it I thought I was doing her a favourShe works in HR and I am trying very hard to comprimise and offered to have it after christmas and other people in HR have said would I accept 15.My issue is she used it regardless and would have spent the money with or without the card.Please help on where I can stand on this. The money would be very helpful to me right now and its the principle of just letting it go. I loose money not her when she has already spent it.please help.EDIT 1 I have a meeting Monday with the lass and head of HR to fix the issue... What are my points? what should I accept? It will be a meeting with pretty much 2 people from HR.EDIT 2 I admitted defeat. I have dropped the whole thing. The general consensus Dont fuck with HR. Live and learn  <response>: Write it off as a learning experience. And bad mouth her behind her back. 