Foxette re. second chance offers, by the time I have waited seven days for payment ( my own self imposed limit that works for me ) , lodged the non payment dispute and waited for outcome, the second chance option is long gone. As a previous poster has noted, I also find second chance offers are rarely accepted, with buyers  being very wary of items that appear to have sold and then re-appear. Foxette is probably correct that relisting with comments about non payers may seem petty with a generic product such as an iphone, but I feel it is important to note with rare collectables that create a lot of interest. I guess we all have to develop our own business models based on what we sell. What works very well in one situation may be counter productive in another.