HI

In all the sales i have done ,we managed to stuff up 2 orders this year (we mixed up the parcels and stuck the wrong address labels on them

we were contacted by the purchasers and worked out what had happened

both purchasers were extremely good about it and sent the items back to us

when we received both items were sent them their correct ones

we then informed them that we would  refund them the postage costs (one was so kind as to not want it so we refunded him  approx $5.00 more than the actual postage cost  as a thank you )

the above was totally our error in this case  so we refunded the postage costs in this case( i might ad they were soooo nice about the error that i was happy to refund it)

they ethically should agree to pay for the postage a sit was their error in total for sending the wrong item (as opposed to sending an item which may have prematurely failed,etc...) but dont have to 

that i suppose is the problem with dealing with some overseas sellers