Unable To Register for Developer Account

Hello,
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I am having an issue setting up a Developer account for our K-12 School System, which we apparently need to grant access to our vendor that handles our school website/app on the appstore. I keep getting the error message "We are unable to process your request. An unknown error occurred." I also cannot access the contact us link from the developer site for the same reason. Any suggestions? An email or phone number to call would be great. Thanks in advance.
Unable To Register for Developer Account
 
 
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