Hello,
Thanks for your question.
I've seen this a few times and it can usually be solved by reaching out to support. To do so you can also dial the global service numbers here:
In the meantime you can try steps here: https://learn.microsoft.com/en-us/azure/cost-management-billing/troubleshoot-subscription/troubleshoot-azure-sign-up
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola