You could try submitting an incident here:
https://support.microsoft.com/supportforbusiness/productselection?sapId=bd7e07bf-0c09-e54e-ed93-b3222737fdc7
Or tweet @AzureSupport
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We lost our azure account administrator login. Any contact number for azure support? Thanks
You could try submitting an incident here:
https://support.microsoft.com/supportforbusiness/productselection?sapId=bd7e07bf-0c09-e54e-ed93-b3222737fdc7
Or tweet @AzureSupport
@CL , Welcome to Microsoft Q&A! Thanks for posting the question.
You can find a local support number from our list of regional Global Customer Service Centres.
If you are unable to log in to the Azure Portal, visit https://aka.ms/AzurePortalHelp for assistance.
Who can submit a support request?
The account administrator, service administrator, or co-administrator on the subscription can submit a support request. Additionally any users with ‘write permissions’ (Owner/Contributor) to a subscription or with the built-in role "Support Request Contributor" will be able to submit and manage a support request related to that given subscription.
Hope this helps!
Just to highlight, Azure 'Pricing and Billing' forum is yet to be migrated to Q&A. Please post your question directly on the MSDN forum for the service (Azure Pricing and Billing forum)
We are actively working to onboard all services. We will make a public announcement once complete.
Thank you for your patience as we evolve the Q&A platform
You may wish to know about 'Introducing Microsoft Q&A (Preview)' and the supported products (Tags).
Thanks for your patience and co-operation!