I know that its my fault but..

I misunderstood how the merchant tabs worked, originally i though they are exactly like Premium but you can make a listing, but now i noticed that they are not in your actual stash so harder to access, so i would like to revert back like 6 of the ones i did.

I'm in the same situation.
@Tuomari what was the support's answer ?
I asked them early this week and they said there are nothing they can do.