There is amount mentioned for every package. One who has credits can redeem them and the other either friend or family have to pay the amount as the packages are of twin sharing
The package you are looking for is double sharing, so if you redeem ur credits then you get the discounted price and your partner has to pay full amount. if you don't take partner then you have to pay for both because its twin sharing.
The existing packages are all on a twin-sharing basis.....so you got to pay the discounted price and the one accompanying you is gonna pay the actual price....