How to address potentially missing parts in sealed old sets sold?

Frank Brickowski · 2014-06-19T08:35:56.000Z

What would you do if you sold an old set that was still sealed and the buyer receiving the set complains about missing parts? Since you did not open the set, you cannot tell if he is making up something or not. And it is known that there ARE factory sealed sets missing parts. So, do you address the issue of potentially missing parts in a sealed set in the product description already to be "sure" no one can complain afterwards? Or does LEGO keep parts even for old sets ready at the customer service long enough after EOL to serve those who bought some years after EOL anyway? Then there would of course not really be a problem with the missing parts... Because you could always say: "Just contact the customer service, please. They will send you the parts."