For the past week, ever since the DinoStore project ended, my AWS account hasn’t been used.
As it is a new month, my billing log has also rolled over.
The charge of $0.14 credits are from two services; EC2 and KMS.
The EC2 charge, as seen in the screenshot below, was from the EBS service within EC2. The instances that I had been creating for my DinoStore had automated volumes within the EBS service system.
When I had shut down the rest of my DinoStore services, I had forgotten about EBS, which is why I have been charged even though I am no longer working upon the DinoStore project.
The KMS charge is a charge for which I am unsure of its origin.
A large factor in my confusion is that the KMS specifies a region-based charge, but when I trace it back into the IAM service, IAM is not region specific, so I’m left unsure as to how I am supposed to determine, and reduce this charge.
As of current, my guess is that may be due to something occurring each time I log into AWS, but I am still very much unsure.
I can’t seem to find any relating AWS documentation, so my current plan is to check with my classmates to determine whether they have the same charge on their Billing Info page.