Kula Kamerlengo, Trogir 
What is the Booking fee?
The Boooking fee covers one part of the costs that Entrio, as a ticketing agency, incurs to process the transaction, issue the ticket and allow you to enjoy the event.
Entrio charges Booking fee for every ticket purchased, for all payment methods on the Internet and at points of sale, which covers, among other things, the cost of Entrio customer support, server system maintenance, administration and other costs associated with issuing the ticket .
Booking fee amount can sometimes depend on Entrio's commercial arrangements with the event Organizer.
Booking fee is non-refundable.
Invalid promo code
Please try again in 15 minutes if you are sure that the promo code is valid - it is possible that the system temporarily reserved it in your previous attempt