Hello @Imran Qadir Baksh , the first error is caused by an attempt to access to a work account only application using a personal account, AKA Microsoft Account (like the ones that use the hotmail.com, outlook.com domain and more). You need to re-attempt using a work account which are accounts created and managed in Azure AD tenants.
To create a work account with Global Admin permissions please follow these steps:
- Log into Azure portal using your personal account with Global Admin role/permissions.
- Go to the Azure Active Directory blade
- Click on the Users blade
- Click on the New user button
- Select Create user, fill the username and name fields, copy the auto-generated password (check Show Password) or set an initial one, select Global Admin as roles and set a usage location.
- Click the create button.
A new user and work account will be created. Use the new credentials to login into http://admin.microsoft.com/.
Now, if you prefer to access billing information with a personal account then please take a look to Reviewing your individual Azure subscription bill in the Azure Portal for detailed instructions.
For more information about both type of accounts (personal and work) please take a look to Sign up your organization to use Azure Active Directory.
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