Unfortunately, in most cases we are not able to refund local tax and duties paid at checkout on international deliveries (including the EU) as these are charged by local governments and paid by Selfridges on your behalf.
Certain countries operate schemes to reclaim any local tax and duties if you return goods and will require a specific application by you to your local government or authority.
(For certain US states, if an order is returned to us via our designated courier we may be able to refund sales taxes subject to the local state laws.)