If the Ice Beam hit your Togekiss before you used Roost on the same turn then it is supposed to be super effective. If you used Roost at the end of a turn then got hit with an Ice Beam on the beginning of the next turn the it's supposed to be super effective. May I ask which pokemon used Ice Beam against you?
cloyster, but yea i used roost, then he switched in and attacked, i didnt know it removes the flying just for the same turn, thanks for that info.