Sacred Parasite's shop exists thanks to Big Cartel, another independent, artist-friendly business SP has no problem supporting. When checking out you'll be able to pay securely by credit card or PayPal.
Orders within Europe usually arrive within a week, two weeks maximum after you've been notified your order has shipped, which you will be. Outside Europe can take a week to a month, but books tend to arrive in two weeks or less.
If your order is taking longer than two weeks (Europe) or one month (elsewhere), don't hesitate to get in touch. Any other questions or concerns, please write to parasitebooks[at]gmail.com.