You can complain about pretty much everything and anything but when does it make sense to seriously file a complaint and how do you go about it?

And how does it all work the other way around, that is to say if you are the one receiving a complaint? What complaints do you need to act on and why?

Complaints may not be much fun but sometimes they are necessary. But how do you file a serious complain and how do you react on complaints?

Keynote speakers on complaints take a closer look at this topic and these questions.