I’m going to go out on a limb and say they and all the other instances that were hit with this attack probably did. Which authorities, I don’t know. If this instance is hosted in Estonia then probably Estonian authorities, but it’s probably being hosted on the cloud so is it REALLY hosted in Estonia? There are a ton of American and EU users so hopefully the FBI and whatever the EU equivalent is. But honestly cybercrimes can get confusing because of the nature of people and hosting being spread out all over the world and it can be hard to even figure out who to report to.