Hi kavita,
Welcome to the Microsoft Q&A forum.
Based on the information provided by you, I understand that your Azure subscription is disabled which is getting charged and unable to create support request.
Please create a support request to Azure billing and subscription management team.
Here is the link you create a support request: https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request
Azure Billing and Subscription Management support is included in the Basic Support Plan without any charge.
https://azure.microsoft.com/en-us/support/plans/
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If you are still facing the issue, please let us know in the comments. We are happy to help you.
Thank you.