Contact PSI
For questions about a payment, annual support, a contribution or the website, email info@postsingularityinstitute.org .
We generally aim to respond within 48 to 72 hours.
To locate a payment, provide its date, amount, currency and, if available, the Stripe receipt reference. Never email your full card number, security code, password or identity document.
Request a refund
Submit your request within 14 days of payment, including an annual renewal. Keep your Stripe receipt: proof of payment is required for every refund. Use the form below to provide the email address used for payment, the payment date, amount, currency and Stripe receipt reference or link.
The refund equals the donation minus only Stripe’s non-returned collection fees and any refund processing fees actually charged. PSI makes no other deduction. The fee breakdown and refund amount are communicated when your request is processed.
Stripe processes the refund to the original payment method after PSI initiates it in Stripe. No banking details are requested. The time it takes to appear in your account depends on Stripe and your bank. A refund does not cancel future renewals: cancellation and refunding are separate actions.
Manage or cancel annual support
Annual support renews every year until cancelled. The secure Stripe portal lets you view your support, manage payment information and cancel it. Use the email address associated with your payment; Stripe sends you an access link.
Check the portal for the effective cancellation date and confirmation that no further renewal is scheduled. If you cannot access the portal, contact PSI. Cancellation and a refund are separate requests.
Contributions and data
To report an error in a page or contribution, send its URL and the proposed correction. For requests about your data, see the privacy policy . The terms of use and support explain donations and contributions.