Accounts Center phone verification stuck on "Pending" for a week — SMS codes for developer registration never arrive or are rejected

I'm stuck in what seems to be two connected problems and I can't find a support route for either.

In Accounts Center, I added my mobile number and completed both verifications — the email code and the SMS code were both accepted. The status has shown "Pending" ever since, now more than a week.

On developers.facebook.com, the registration flow asks for an SMS code. Either no code arrives, or the code that does arrive is rejected as invalid when I enter it. After a few attempts I get "too many requests, please try again later" and I'm blocked for a while.

What I've tried:

- 5 attempts over 7 days, roughly 24 hours apart

- Correct country code each time (Bangladesh, +880)

- Confirmed my phone receives SMS from other services normally

- Regular carrier number, not VoIP or virtual

- Re-verified the same number through Accounts Center more than once

I can't file a platform bug report, since that tool requires completed developer registration — which is the thing I'm blocked on. The personal account help paths I tried either don't cover this or lead to pages that don't load.

Two questions for anyone who's been through this:

1. Has anyone cleared a "Pending" Accounts Center verification that persisted after the codes were accepted? Did removing and re-adding the number help, or did it make things worse?

2. Is there any support route for someone blocked before developer registration completes? Everything I've found seems to assume you already have an account.

I've seen a few similar threads here about SMS codes never arriving during developer signup, so I don't think I'm alone on this. Any pointers appreciated.