Globally unique resources that provide access to data management services and serve as the parent namespace for the services.
Hello Rubén Carmona García,
Thanks for your question.
Scroll to Cost Management + Billing > Cost Management > Overview. You should see details about your free credits under the Credit Summary section. If it shows no credits, there might have been an issue with the account setup.
You can also reach out to billing support here: https://azure.microsoft.com/en-us/support/create-ticket
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola