An excited group of girl scouts who thought they made it big after an order of 6,000 boxes of cookies was placed on Saturday were left devastated after they found out the order was a hoax.

The order was placed from an address belonging to an acquaintance of a troop leader, but turned out to be a girl who used her mother's email address to pull the prank, according to The Christian Science Monitor.

After the girls had already processed the order, they called the company for the payment,

"I contacted the ... company and they said, 'We have no idea what's going on,'" scout mother Jennifer Reed said on Good Morning America.

The girls were hoping to use their earnings for summer camp and the homeless shelter they had committed to helping.

"They placed a fake order on us and they didn't know that it hurt our feelings a lot," Girl Scout Erin Donnelly, 8, said to Yahoo.

The group of scouts held an emergency sale at the Portland Girl Scouts headquarters on Saturday, with hundreds of supporters lining up to buy the cookies. They sold about half of the cookies they were duped out of from the sale.

The CS Monitor reported that the girls will try to sell the remaining 3,000 boxes online, as well as at the council headquarters this coming Saturday.