After uploading the PushCertificateRequest.plist file in the "Create a New Push Certificate" form on the Apple Push Certificates Portal, I receive a "The page you’re looking for can’t be found." response.
Apple Push Certificates Portal - Can not create new certificate
Please contact Apple Deployment Programs Support for issues with https://identity.apple.com
You can find contact information for your region at https://support.apple.com/en-us/118629