Complex sentence: If the contestant answers the bonus question wrong, they lose everything, but if they had earned at least $2,500 before the bonus question, then they receive a consolation prize in the form of a $2,500 prepaid card.
Split into simpler sentences: If the contestant answers the bonus question wrong, they lose everything. If they have earned at least $2,500 before the bonus question, then they receive a consolation prize in the form of a $2,500 prepaid card.