@- - Thank you for sharing your latest update on the subscription being disabled.
You are correct that you will need to enable the subscription to move or access data from the free trial account once the free trial has ended. Data in the subscription will remain for 30 days after the end of your trial before it is removed.
If you really need the data, you can add a credit card to gain access. Access the data that you need within a few hours, then make sure you delete all resources and then delete the subscription. This would help to ensure you limit your exposure to additional charges.
You can also create a new web app and redeploy your site files onto your new web in your new subscription if you do not wish to add a credit card to your free trial sub.
Please see the Free subscription FAQ page here for more information.