I had the wrong part all boxed up and an address written on the box. I was about to walk across the street to the post office when I decided to double check the the list. I'm glad I did because that's when I caught the error. It's called responsibility. I say keep the AVC unless he is willing to make the deal sweet for you. If he's being totally cool about it then I'd say work with him on it though. People do make mistakes sometimes.