Hi,
Below are instructions for re-activating your subscription:
Reactivate a disabled Azure subscription
https://zcusa.951200.xyz/en-us/azure/cost-management-billing/manage/subscription-disabled
An Azure Free account needs to be upgraded to Pay-As-You-Go after the first 30 days or it will be Disabled. If you don't reactivate within 30 days after it being disabled, your subscription and any data will be deleted.
Please click Accept Answer and upvote if the above was helpful.
Thanks.
-TP