many trickes at grocery store in US

once i bought some Chinese eggplant at HEB, the price tag shows $1.88/p and my wife looked at the receipt at home and gossipped to herself 怎么这茄子这么贵. i told her its price was reasonable. she showed me the sheet and pointed the price with her finger $2.88/p and i read the item with a name of JAPANESE EGGPLANT. it was weird for me and i told my wife i didn't buy any Japs eggplant. I told the manager of the HEB service center i didn't bought the Japs stuff. he said his store never sold JAPENESE EGGPLANT. i showed him the receipt and he said the computer makes the mistake.