Every trade is held in escrow. The seller’s crypto is locked before you pay, and released only when you confirm the money arrived.
Pick an offer and enter how much you want to spend. The seller’s crypto moves into escrow before you pay. Pay them by Nigerian bank transfer, mark the trade as paid, and they release the crypto to your Koinzaar wallet. Buyers pay no Koinzaar fee.
Screenshot of the transfer showing the session ID, amount and recipient
At least 15 minutes, and each offer states its own. If the buyer has not marked the trade as paid by the deadline it is cancelled and the escrow returns to the seller.