Please note that Azure’s free trial offer is limited to new users who have not previously signed up for any Azure subscription. If you’ve had an Azure subscription in the past even if it was a different type, you may not be eligible for another free trial.
If you're seeing an error or a message indicating you're not eligible, please double-check that:
Your contact and billing information is correct
You’re not using an account tied to an unmanaged Microsoft Entra directory
You haven’t used a free trial in the past with the same account or payment method
If you're not eligible for the free trial, you might consider signing up for a Pay-As-You-Go subscription instead. It allows you to access Azure services with no upfront cost, and you only pay for what you use.
https://learn.microsoft.com/en-us/azure/cost-management-billing/troubleshoot-billing/troubleshoot-declined-card#the-card-is-not-accepted-for-your-countryregion
https://learn.microsoft.com/en-us/azure/cost-management-billing/troubleshoot-subscription/troubleshoot-azure-sign-up#about-you
https://learn.microsoft.com/en-us/azure/cost-management-billing/troubleshoot-subscription/cannot-sign-up-subscription
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