An optional contribution to Zeffy (the Ticketing Provider) of 17% of the total ticket cost is automatically added by Zeffy at checkout. If you wish to change the amount or not make any contribution, do ensure to reduce the contribution to the desired amount before making payment.   

Any request for a refund for any optional contribution is only repayable upon request to the Ticketing Provider (Zeffy) within 45 days of the payment being made. More details can be found in Zeffy's T&Cs here: https://support.zeffy.com/terms-of-use-for-users