Based on the provided context, if your Visual Studio subscription is disabled, you can re-enable it as a pay-as-you-go subscription by following the steps provided in the email notification. However, if you want to continue using Azure with a monthly credit, you will need to renew your subscription, purchase a new subscription, and/or transfer your Azure resources to a different Azure subscription that includes the Azure dev/test individual credit. If you are unable to renew your subscription, you may need to contact Microsoft support for further assistance. As for the issue with your admin privileges, you may need to contact your subscription admin or Microsoft support for help with regaining access.
References: