Artifact Signing – AU10TIX PIN code email never received during organization identity validation

Hello,

I'm trying to complete a Public Trust Organization identity validation in Artifact Signing (company based in France).

• Identity validation ID: abe421a3-74ae-4ebe-ad25-9e57977e6754
• Status: In progress
• Region: North Europe, Basic tier, Pay-As-You-Go subscription

I received the "Complete your identity validation" email, opened the link (credentials.microsoft.com), clicked "Get verified here through our trusted ID-verifiers", and AU10TIX asks for a 4-digit PIN code "sent to your inbox". This PIN email never arrives.

• Tested with two different email addresses (a personal Microsoft account and a work account in our Entra tenant, on our verified custom domain).
• Checked spam/junk folders and the webmail directly.
• Our mailbox receives external emails normally.
• There is no "resend code" option on the AU10TIX screen.

Could someone from the Artifact Signing team check whether the PIN email is being sent, and to which address, or help us complete the verification another way?

Thank you.