Account Support

I have been asking for help from different epic dept for 3 months now on help with an account issue. Where can one get access to the UDN. I have completed the console access form 3 months ago. I got an automatic email reply 3 days later telling me to contact Microsoft. I called Microsoft partners and they told me my dev account has been active for 3+ years. I believe it might be my email addresses being different. But I cant get any help. Just looking to get started on my Xbox Port.