To convert your existing Pay-As-You-Go Azure account to a Free Tier account, you will need to follow these steps:
- Check Eligibility: Ensure that you are eligible for a free account. If you have previously used a credit card to sign up for a different Azure subscription, you may not be able to activate a free trial.
- Contact Support: Since you mentioned that you are unable to create a free account due to the credit card already being used, it is advisable to contact Azure support for assistance. They can provide specific guidance on how to proceed with your account.
- Consider Account Closure: If necessary, you may need to close your current Pay-As-You-Go account and then create a new Free Tier account. However, this should be done with caution, as it may involve losing any existing resources associated with your current account.
- Provide Required Information: When contacting support, be ready to provide your account details, including the email address associated with the account, to expedite the process.
Unfortunately, I cannot directly convert your account for you, but following these steps should help you get the assistance you need.