Log in via this link with the account you used to purchase tickets, or go to your order summary via the 'Manage Order' button in the confirmation email you received after purchase.
Then click on 'More actions' and then on 'Resale'.
Choose a sale price and confirm that you want to sell the ticket.
You will automatically receive a confirmation once a ticket has been sold. Through your account, you always have the option to remove your ticket from sale or change the price, as long as the ticket has not been resold or added to someone's shopping cart.
Paylogic Customer Service