Issue in Contacting support apple developer

It's months that I try to enroll to the developer program... They write me that they need more documents but they don't say which ones! If I write back they don't answer. If I try to contact support:

The call me back option doesn't accept any number mobile or landline and the error message refers to wrong email instead of number: "This email address isn't valid. To update your email address, visit appleid.apple.com."

The email form has the right email address but if I clic send it kind of stuck there, I don't receive replys nor confirmation of delivery.

How can I contact support?

Issue in Contacting support apple developer
 
 
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