It has been shown twice now that bringing these incidents to the public's attention clearly is the most efficient way to get a satisfactory resolution without the back and forth posturing and argy bargy that typically accompanies a private transaction that has gone wrong.

Well done andy.  

And no I don't subscribe to the customer is always right philosophy either, but there is a difference between receiving the wrong part and receiving the right part but the receiver deliberately sabotaging/mishandling the item in the hope of getting a free replacement.