If the order does not arrive, arrives short, or arrives unusable, open a dispute rather than confirming. A moderator reads your account, your evidence, the full message thread and the vendor's history before deciding.
Open a dispute when a vendor has gone quiet past a reasonable window, when the order is well past its shipping time with no update, or when what arrived does not match the listing. Bring clear photos and a calm factual account, because the evidence is what the decision turns on. Keep the language factual, not accusatory, and answer questions quickly.
A refund returns the coin to your balance, from which you withdraw.