The same issue. I got this error 'Your enrollment in the Apple Developer Program could not be completed at this time.' another thread about this issue: https://developer.apple.com/forums/thread/652750 APPLE PLEASE TAKE A LOOK I already submitted this issue to Apple Support and answer does not explain nothing. Hello, My name is Patrick, and I’m an Advisor with Apple Developer Program Support. I am happy to assist you today. I see that you are having an issue enrolling in the Apple Developer Program. For one or more reasons, your enrollment in the Apple Developer Program could not be completed. We are unable to continue with your enrollment at this time. Your case number is 101124826271.

I have same issue, I have checked my profile/account and all data are correct. First Name and Last name Age(older than 18 Payment card ( I already purchased apps/items in Appstore). I have tried master card, visa Address When I submit form to enroll development program I have checked HTTP request as well  HTTP Request POST (406) https://developer.apple.com/servicesenrollment/submitIndividualEnrollment Response creationTimestamp: "2020-07-03T14:15:39Z"httpCode: 406requestUrl: "https:/developer.apple.com/services-enrollment/submitIndividualEnrollmen"responseId: "8575721d-e88c-44c1-984f-cae3cc8fc5f2"resultCode: 202000resultString: "Your request could not be processed"userLocale: "en_US"userString: "Your request could not be processed" As you can see I got some unknown error: Your request could not be processed Without any details about reason.