Thanks for your question.
When your usage results in charges that exhaust your spending limit, the services that you deployed are disabled for the rest of that billing period.
If your subscription type includes credits over multiple months, your subscription is re-enabled automatically at the beginning of the next billing period. Then you can redeploy your Azure resources and have full access to your storage accounts and databases.
See:
To regain access to the resources, if you are using a subscription that renews every month you can wait and redeploy. If not, you can navigate to a pay as you go subscription.
I will also recommend you create a support request since this seems a bit urgent from you description. To do this: https://azure.microsoft.com/en-us/support/create-ticket
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola