Hi everyone I'm wanting to know whose responsibility it is:    I've posted an item to the address the buyer had logged into Ebay under view order details which gets emailed to you when you've sold an item  Then I've gone to contact buyer to send a message to let them know it's posted & noticed a little note to sender telling me that they've changed address (same suburb).  I straight away send an email telling them I've already sent it and they need to intercept it at P.O.  I've just received the  parcel by return post & for me to resend it will cost me. Who's responsibility is this?