title: AWS - MariaDB billing free tier
body: <p>I have 1 RDS in <strong>eu-west-2 (London)</strong>, I use <strong>t2.micro and 20Gb of GP2</strong> which should be free during 12 months of the free tier. But for some reason, I still get billed for GP2 storage. What can be the reason for that? I had the same database in a different region (Frankfurt) for 3 months I didn't pay a cent. Is it possible that it is not free for the London region?</p>
  <p>More info about DB config:</p>
  <ul>
  <li>engine is MariaDB</li>
  <li>Automatic backup retention period is 5 days</li>
  <li>Slow query and Error log are enabled</li>
  <li>Single AZ</li>
  <li>Auto minor version upgrade is enabled</li>
  </ul>
  <p>Also, there is one EC2 instance running t2.micro with 20GB ebs</p>
  <p><a href="https://i.stack.imgur.com/NatBO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NatBO.png" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/kcFe0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kcFe0.png" alt="Free tier usages" /></a></p>
  <hr />
  <p>I raised a ticket to the AWS support team, they said that it was an internal error and they fixed it now</p>