Please go through the verification instructions for iOS in this help article:Publish Your App to Google Play or Apple App Store with Icenium
Namely you should have a certificate and provisioning profile for App Store distribution. You claim that you have gone through these steps, but we cannot confirm it as you're using a different email account than the one in this profile. Please, note that the CSR must be created and completed in Icenium, the certificate and the provisioning profile must match.
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