After numerous contacts with Apple support, emails and phone calls, which have being going for for almost a month, this email finally arrives: Hello XXXXX,  YYYYY here from Apple Developer Program Support. Thank you for reaching out to us. We are currently experiencing a higher-than-normal amount of inquiries, as such, I do not have a timeframe in which this review will complete. We appreciate that completing your enrollment is very important to you, please rest assured that we are working to resolve your query as quickly as possible and a member of our senior team will be in touch with you as soon as more information becomes available. We ask that you do not submit any further payment attempts at this time, as this may delay the process. Should you have any further questions, please feel free to let me know. Your case number is XXXXXXXXX. Fingers crossed that this member of a senior team will finally get in touch and be able to actually resolve the issue.