Oops i made a mistake?

I bought some stash tabs with the 300g from the ea access and after i realized that steam was using another account for PoE 2.
Any way to swap account whitout loosing progression? (if it's possible to swap account in the first place).
And if someone can explain me why after i bought the ea access and i got the 300g on one account and i get to play on another ahahaha? maybe a way to share the tabs?