i heve problem cant open ticket

Hey i did worng choise on my Donate from long time .....
i buy worng Trinket [Tiny Abomination in a Jar]HC
to my DK is name is SpartanikS i will like change it .
i heve on him 3 trinkents !
1 [Deathbringer's Will] HC
2 [Sharpened Twilight Scale]HC
3[Tiny Abomination in a Jar]HC (this 1 i want to chane This worng Donate i did !
plise change it to Sindragosa's Flawless Fang HC its trinket for tank

And on my hunter i did worng donate oon my bow name of my hunter is Mewtwos
[Zod's Repeating Longbow]HC
plise chane it to Fal'inrush, Defender of Quel'thalas HC

i try open Ticket its not give me maby any GM can fix it plise

wan i try open ticket its say Your ticket information contains illegal characters, try again.

how i can contact premium support ????

i heve this problem long Time i play in this server from 2012 !
some 1 help me ....

When you can't open a ticket you can send an email to [email protected]