Yes you need to pay the price of a festival ticket which is a refundable deposit. This acts as a bond to ensure that you attend and complete all your responsibilities onsite.
Your deposit will be returned to you 4 weeks after the festival. This deposit will be returned if you attend all your shifts satisfactorily. This means checking in at the volunteer hub before your shift, attending and being on time for all your shifts, and returning any tabards or radios.