I bought a brand new pair of sunglasses off eBay from America & found an extra set of lenses in the packaging. I contacted the seller to say it had arrived & what were the extra lenses for & got this reply:
Hi. I think we sent you the extra pair of lens by mistake. I am sure we can't take them back for it will cost more money to return them. You can keep them if you want. But I would appreciate if you at least pay our cost for the lens which is $20. If not, I will be okay. You can keep them anyways.
WWYD? If it makes any difference the sunglasses were Oakleys end of line stock costing £135.