For DynamoDB, I'm not sure but I think its covered. https://aws.amazon.com/dynamodb/sla/. "An "Error" is any Request that returns a 500 or 503 error code, as described in DynamoDB". There were tons of 5XX errors. In addition, this calculation uses percentage of successful requests, so even partial degradation counts against the SLA.

From reading the EC2 SLA I don't think this is covered. https://aws.amazon.com/compute/sla/

The reason is the SLA says "For the Instance-Level SLA, your Single EC2 Instance has no external connectivity.". Instances that were already created kept working, so this isn't covered. The SLA doesn't cover creation of new instances.

It's not down time, it's degradation. No outage, just degradation of a fraction[0] of the resources.

[0] Fraction is ~ 1

This 100% seems to be what they're saying. I have not been able to get a single Airflow task to run since 7 hours ago. Being able to query Redshift only recently came back online. Despite this all their messaging is that the downtime was limited to some brief period early this morning and things have been "coming back online". Total lie, it's been completely down for the entire business day here on the east coast.

We continue to see early signs of progress!

It doesn't count. It's not downtime, it's unscheduled maintenance event.

Check the terms of your contract. The public terms often only offer partial service credit refunds, if you ask for it, via a support request.

If you aren’t making $10 for every dollar you pay Amazon you need to look at your business model.

The refund they give you isn’t going to dent lost revenue.