Hi again @Prabakar Ammeappin​ - I took a brief look this morning at some of the things the Cloudformation template spins up (VPC, Roles, Bucket) and didn't see any leftovers from the previous attempt, so although I didn't check for everything that gets spun up, I feel confident there are no remaining things. What I did find interesting this morning is that it appears I don't even have a subscription to Databricks through the AWS Marketplace any longer??? (see screenshot)

Could this potentially be the issue?

oh, and when I goto the AWS Marketplace to 'manage' my Databricks subscription, I see this "Subscription linking in-progress" message.

ah ha...we're getting somewhere @Prabakar Ammeappin​ !! So when I click on the "Sign Up" link in the Databricks Admin console image above, I get this:

When I submit that form, I get:

Seeing as how I can login on the Databricks https://accounts.cloud.databricks.com/ site, I guess I need to 'contact our sales team'??

Yes. It's better you check with the sales team to understand what is happening here.