I have a problem with Apple Private Relay.

If you used an Apple Private Relay on any external crowdfunding platform, it's not possible to use it on Indiegogo. If you contact us via your Apple Private Relay email address, you won't be able to receive a message from us. You should be able to change the email in your order directly within the external platform to enable the creator to import your cart.

Each case of such a problem has to be handled individually with the help of the creator. You can contact the creator using a contact form dedicated to a project.