Firstly, you must ensure the order you want to sell is linked to your See Tickets account.
When logged in, if your tickets are not showing on the 'orders' section of your account, please follow the on screen instructions to import them here. You will then be able to view all your eligible tickets on the Resales tab when signed in online.
If your tickets are eligible, you will be able to start the listing process by following the prompts online.
Please note, if you do not have a card linked to your account, you will need to add one during the listing process. This card will be used for funds to be paid to on completion of a sale.