Microsoft Forms falsely flagged as phishing, unable to distribute or duplicate form Copy title

I am using Microsoft Forms through a personal Microsoft 365 subscription to develop legitimate English language assessments for an educational institution.

One of my forms, "English File 4th Ed. - Intermediate General English Progress Test 2", has been incorrectly flagged for potential phishing.

The form contains standard Listening, Grammar, Vocabulary, Reading and Writing assessment questions.

I have already:

Removed the personal details section.

Reviewed and edited potentially problematic question wording.

Attempted to redistribute and duplicate the form.

However, the phishing restriction remains active. I can still access and edit the form, but I cannot distribute or duplicate it.

As this is a personal Microsoft account, I do not have access to an organisation's Microsoft 365 administrator or Defender portal.

How can I request a manual review and have the phishing restriction removed without losing my assessment?

Please advise how to escalate this issue to Microsoft Forms support.