[mothered]

I am debating between logitechg.com, harvey norman, kogan and catch. Do you have any recommendations regarding which to choose?

Harvey Norman Is pretty difficult to deal with - both In-store, and online. Cogan and Catch are quite similar, and a little more flexible than Harvey Norman. Logitechg.com speaks for Itself.

Does JB Hi-Fi sell the product In question?

In response to your other answers, I guess it seems more logical for a DNA rather than a wrong item received as it may overcomplicate things.

You know what to do with the DNA - check who's liable for loss of goods, and the type of verification on delivery.