Yes. An ex-gf ordered a very nicely upgraded Inspiron (5000?) back in 2000 and they sent her a base-model. The order and the packing sheet did not match, the packing sheet and the laptop did. They had absolutely no problem taking it back. It actually worked out in her favor, as during that timeframe they released a newer version (5000e?) which was even nicer, so she ordered that instead.

It is very odd they did it twice in a row though.