Your enrollment in the Apple Developer Program could not be completed at this time.

Same here FeelsBadMan

Same here too.

My client is in urgent need of the application.

Same

Same here Cambodia.

Same here, Norway

Same in Iraq

The same in Italy.
I have two valid payment methods: Paypal and Credit card.
Both works for buying on App Store, Apple Pay and iCloud.
I receive the aforementioned error after accepting the agreement.

My suspect is that this issue is related to the new Apple TV+ subscription.
Here are my clues:

1) It started around November 2019, exactly when AppleTV+ debuted
2) In the response of the API that returns status code 406 when I accept the agreement, there is a property userLocale: "en-US" even if my locale is it-IT
3) If I go to my AppleId section on my iPhone and try to display the country/location, I receive a message "there is an Apple TV+ subscription that needs to be removed in order to change location" (roughly translated from Italian)

So... if in a couple of days I won't hear from Apple, I'll try removing my trial AppleTV+ subscription and taking one for the community.
I'll let you know if that works.

Same here 👎 (Germany).
I also have the TV+ subscription trial

Same issue for me, in France.

Same here (Russia)
I tried 4 different Apple ID's, new and old.

Same here!

I have never activated an Apple TV + subscription, not even on trial, and I have always had the region / country in Italy and yet I also get the screen that it is not possible to register for the developer program. So I don't think the problem is Apple TV +

Hello,

same problem here, German account.
Have already tried 3 accounts, with and without TV +
with and without credit card information

Very strange

Greetings from Germany
Yoshman

same here. After accepting legal agreement, they prompt this message. Is there anybody who feels responsible helping customers? Anybody who can fix this problem?

Greetings from Germany.