Sana'a University reserves the right to change prizes or paid in cash in the case of airline seats full. By paying in accordance with the value of the airfare for the Sana'a University made a reservation at the same time as another winner.
USANA reserves the right to change the prizes. Or cash in an airline seat. By paying the value of the flights on the day of booking USANA, along with other winners.
Yuzana reserves the right to change the prize. Or pay in cash in the airline seats. By paying the value of air ticket booking on yuzana simultaneously with another winner .