Here You can pre TOP-UP credit for your ticket. The credit will then be transfered onto a chip that you will receive at SWAP when you check in your ticket.

At the link below, You can TOP-UP online before the festival and start enjoying straight away when you enter the festival grounds. The minimum amount for pre TOP-UP is 250 CZK, the maximum is 15,000 CZK.

Pre TOP-UPed amount You can check after top-up at the bottom right of the same link by entering the ticket number again.