What more of the story is there?

My initial email enquiry had my address on it. I didn't order the part; it was sent to me FOC after I emailed them the photo of the failure.

As I have already stated the job was straightforwards right up until it broke. When exactly was I supposed to ring the manufacturer?

The item obviously isn't designed to break with normal use and obviously there is either a design fault or my particular component had a manufacturing fault. I'm not mentioning the component or the manufacturer as it appears that general consensus is that the fault was all mine so the manufacturer is irrelevant.