I bought a lot of bundles and got 285 Exchange medals because i wanted the swordsman Ceremonial Costume (Female), but i did that on my Hunter, and now i can’t trade my exchange medals with the team storage, and i can’t buy the costume with my hunter… What can i do ?
its not possible to trade exchange medals with your alt…sadly.
what you could do is shout and offer to trade the costume.
good luck 
edit: oh wait, you cant buy the costume with your hunter? why is that?
No idea, probably because it’s a swordsman costume…
oh that what you mean. try to offer the hunter costume in exchange for the swordman. or buy the costume, sell it in the auction house and buy the one you want