King Of Faridun Supporter Pack from steam and its added to old poe1 account

I bought King Of Faridun Supporter Pack from steam twice because first one doesnt added the pack content and contacted with steam support and they told me after second time it seems bought at steam from their side and i need to contact with you and if there is no resolve for the problem they wanted to take screenshot of the conversation with GGG support, i bought early access key and previous supporter pack from steam before and i got my cosmetics and currency but this time it adds to my old account which is SinxGO#1791 but the problem is its my old poe1 account which i dont ever remember it existed, and when i link my steam account with my email this 2 accounts are linked together i suppose. And when i bought from steam there is no option for the account selection and its giving the currency and other cosmetics to the account i dont even played and cant use on my main account. I want to move that supporter pack to the SinxGO#3167 and i want that old account linked which is SinxGO#1791 to be removed so there wont be any problem in future everytime i purchase something from steam if i cant buy stuff to my main account which i spent 200 hours and lots of money and time i want to refund the supporter pack.

And yes i wrote same message to support from "support@grindinggear.com" and private message sent to Support too but no returns and its been 5 days since mail and 3 days since private message from forum site at the upper section so this is my last time trying.