The Duffel Wallet is a simple prepaid account which you'll use to pay airlines for flights and paid extras, if you're not an IATA agent
With Duffel, you can start selling flights without becoming an IATA-accredited travel agent or building your own relationships with airlines and getting ticketing authority (sometimes known as a "ticketing plate").
When you do this, you'll pay airlines for the flights and paid extras your book using your Duffel Wallet.
The Duffel Wallet is a simple prepaid account. You top up by bank transfer, and then your funds will be available to spend on flights and paid extras from airlines you're connected to.
You can top up your Wallet and keep track of your balance and transactions from the Wallet area in your Duffel dashboard.