Glass cracked, only display replacement

Ebay has a seller that is selling just the LCD without the digitizer. But when they advertise it they list the LCD as a glass part. Makes it look like your getting both. How they are selling just the LCD. Dont Know! Must have been a factory mistake they have bought for little of nothing and selling it as a replacement to fix Nano 6. My understanding Ipod Nano does not sale them seperate. Please give me some feed back on how they are getting away with false advertisement. I just got burned for it.