I have a situation not sure how to deal with it.

I am a AC Elite, nominated two people (X and Y) and upgraded for them. However for the return trip, i am short of 10 eUpgrades to upgrade for both of them again. (I can only do up for X not Y) my friend who is also an Elite, is willing to share the eUps with me or X/Y. How is it supposed to be done?

I read that my friend can't nominate either X or Y because I have nominated them already. So that means I can't upgrade for X and my friend upgrade for Y? or how does it work? He can't send 10 eUps to me then I upgrade for both X and Y?

Thanks for your help!!!