An Azure platform as a service offer that is used to deploy web and cloud applications.
I think @AzureSupport on X is the next contact to try, since Azure Portal sign-in is failing and Engage Center shows no workspace access. Share this thread and ask where to request an Azure for Students eligibility and @oa.edu.ua domain review without an existing subscription.
AADSTS16000 concerns tenant sign-in, while the Engage Center message concerns workspace permissions. Neither explains the failed academic verification.If X doesn't help, ask your university IT team whether they can help reach Microsoft Support. Keep student documents and full error details for a private support channel.