A chargeback is a payment reversal initiated by the buyer's bank/card provider after the fact. In a market where the "product" is an account handoff that can't easily be undone, that risk is exactly why crypto — which has no chargeback mechanism — became the dominant payment method.
Sellers generally won't accept payment methods that allow chargebacks, and "sales are final once payment is sent" is standard language across this entire market as a direct result — not a policy unique to any one seller.
No — that finality is precisely why it's the standard payment method here, and why "sales are final" is standard language across this market.
Open the vault, pick a listed username, and DM the contact handle shown on the site to arrange payment — there's no cart/checkout, it's a direct conversation with the seller.
Crypto-only. See the Terms of Service for the full payment and delivery policy, including the sale-finality and 72-hour issue window.