free tier 30 days trial lasts only 3 days

Summary:
I signed up for a free tier 30 day trial, why did it expire after 3 days?

Content (please ensure you mask any confidential information):

My understanding is that the free tier lasts 30 days, and after that the Always Free kicks in within the limited resources. So not sure why my free trial I signed up for on Friday 4/26, has already expired on Sunday 4/28,

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):