You can sign up new accounts, even on the same credit card. Additionally I believe that if you contact support and agree for them to wipe all the resources in y

You can sign up new accounts, even on the same credit card. Additionally I believe that if you contact support and agree for them to wipe all the resources in your account - you can have another year of free tier again. And of course, you're deploying all your stuff automatically anyway right? So wiping the account doesn't really matter.