Thank you for sharing the details. The Microsoft 365 Developer Program allows only one active subscription per account. When a subscription is deleted, the account remains flagged and you cannot create another immediately.
Here are your options:
- Wait up to 30 days for the account to be released.
- Create a new Microsoft account and register again in the program.
- If you need to use the same email right away, contact Microsoft Support to request manual release.
You can register with a new account here: https://developer.microsoft.com/microsoft-365/dev-program.
Let me know if the issue persists after following these steps. I’ll be happy to assist further if needed. If the issue has been resolved, Kindly mark the provided solution as "Accept Answer", so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.