Help I need to take something back

[Kickback]

I crazily bought a pair of very expensive boots from Selfridges the other month and I have worn them only once but really don't like them and they are far too
big. I could really do with the money back, but don't know how to go about getting it.
Any suggestions please?

Sell them on eBay. They're not faulty so you can't get a refund on that basis, and you've worn them so they can't be resold.