Deleted environments cannot be restored. You would need to recreate the environment and redeploy your services, using the "Duplicate Environment" option from an existing environment if that helps replicate the configuration.

Was holding onto a micron of hope that there would be some sort of delay in deleting environments that Railway staff would have access to be able to restore.

Unfortunately, environment deletion is immediate and permanent - there's no grace period or internal snapshot we can restore from. You'd need to recreate the environment manually, and using "Duplicate Environment" from an existing one can help replicate the configuration faster.

That's a shame. In the future, I'd like to see the same level of rollback that's currently available for performing actions within the environment, as well as a stronger anti-deletion prompt. 100% user error on my part, would just like to have better safeguards in place for the future.

In the meantime - can you up my service creation limit?

There isn't a service creation limit on the pro plan, so can you tell me exactly what you're referring to?