1: send an email to firstname.lastname@example.org with your age, name and room partner. The rooms are for 3-4-5-15 people. We will try to put groups together if they advise soon. The dates are 8 and 9 of july with a price of 17 aprox. If somebody wants to stay more days, he should make the reservation directly with the hostel as soon as possible.
2: Wait for the answer with the final price and the bank stuff.
3: Pay by bank tranfer and send a final email to email@example.com
If you choose San Fermin Youth Hostel, that is the clothest accomodation to the venue (same metro that the venue), here you have how to get there from the metro station.