I have let 2 seller welch's slide before, but I won't anymore. It gets old, and if they did it to you, and you did nothing, they will more than likely do it again. My situation was a little different than yours, but still. I will from now on report any welcher. On the same not, I don't think all welches should mean automatic ban. I mean that's what the feedback system should be for. Now, if it happens more than once or twice, or you run off with someones money, then yes, ban them. But if you tell someone you will take it, and then realize you made a mistake, and no money or product has been exchanged, then you deserve a neutral feedback or at worst, and negative. But that's just what I think. I for one have never welched.