/sell walks through the listing: the game, what you are selling, the details buyers filter on, the price, and — for an account — the credentials.
The credentials are required when you list and are stored encrypted. They are shown to the buyer on the order page after payment and nowhere else. The listing states the email status honestly: whether it can be changed, and from which date if not. That single line decides more disputes than anything else.
No credentials are asked for — and none are accepted. A listing for a boost or a stack of gold with a login attached means the wrong kind of listing was chosen. Currency listings set a unit, a stock and a minimum order; boosting listings state the mode, self-play or piloted.
You set the price you want to receive. That is the number that lands on your balance after the warranty window, in full. See Seller fees: 0%.
Every new listing is checked before it reaches the storefront — usually quickly. The check is whether the listing matches what is sold. A listing that is accurate goes live; one that is not comes back with what to fix.
Edit the price as the market moves. A listing left at last month's price does not sell, and a sold unique listing stays where it is with no stock, so buyers see the history.
A listing nobody has touched for 45 days gets an email asking whether it is still for sale; at 60 days it is taken off the shelf. It is not deleted — the page and its history stay — and one click on "Confirm availability" in your cabinet puts it back and restarts the clock. Any edit counts as activity. This keeps buyers from paying for accounts that were sold elsewhere weeks ago and never delisted.
Still stuck? A person answers in the chat.