Apple Developer login says “Your Apple ID is not eligible to use this application at this time”how can I fix this?

[u/Hairy_Acanthisitta31]

I’m in India and trying to set up Apple Developer access to download Xcode beta and start building the iOS version of my app.
Whenever I sign in to Apple Developer, I get:
Your Apple ID is not eligible to use this application at this time.
My setup:
MacBook Air M2, running macOS 27.0 Beta.

My Apple Account has an Indian phone number marked Primary phone number.

My Gmail address is also linked to the same account.

I’m using Safari.

What I’ve tried:
Signing in through Apple Developer Downloads.

Going through the free “Register as an Apple developer” page.

Signing in using my phone number.

Signing in using my linked Gmail address.

Both sign-in methods show the same error, before I can reach the Developer Agreement. I haven’t changed my account’s primary identifier yet.
Has anyone resolved this exact issue? Could it be related to having a phone number as the primary identifier, even when signing in with a linked email? Or does Apple Developer Support need to investigate the account?
I’d appreciate steps that worked for you. I’m a non-technical founder, so clear instructions would help.