During checkout, select PayPal as your payment option. You will then be sent to PayPal's website where you can pay with your preferred payment method. Be sure to continue with the process until you are redirected back to Warehouse 23, confirm your order, and see a receipt page.
We will ship your order to the address you entered on Warehouse 23, not the one on PayPal.
If this did not answer your question, please open a new ticket.