Every single post you’ve made since the creation of your forum account is belittling other people and frowning upon the cash shop, calling people that support the game “casuals” and “p2w losers”.
I am suprised you are not suspended yet.
Also, think whatever you want, how can you be sure that I am a “casual”?
You’d be doing everyone a favour (including yourself) if you just left the forums and resume your pro-supremacy existence ingame.
Clearly you are lacking basic understanding on how to interact with other human beings.
The company actually does a great job at self-publishing their game, if you played other online games you would know.
What you did here was admitting you made a mistake and blame the support for not helping you fix it.
While I agree it’s a shame that cosmetics are not shared through your account it was not the wisest decision to bring this matter to the forums.
If you did some research on your part you would have known that cosmetics are character bound and there is no means of transfering them.
Your only options are to suck it up now and start a new char and delete the old one with the costume, or file another ticket explaining your situation and POLITELY ask for it to be transfered.
As far as I know it was possible to transfer the Stat / Skill reset potions from founder packs to other characters if you redeemed the package on the wrong character.