Ms Willerton said: "They put us in a hotel with no beds, they often didn't feed us.
"I started complaining straight away, but they would always reply with 'you won't win the contest if you complain'.
"Then it moved onto bribery, sexual harassment. Girls were offered places in the competition in exchange for sex, in exchange for money, it was completely corrupt."
She said after being sexually harassed she and several others informed police.