Immediately after an instance is deleted, it is still available for a short period of time before being hard-deleted from our database. If you need to get the instance (which has user information) after an instance is deleted, you can call the following API:
GET /instances/{id}?includeDeleted=true
Remember, this approach only works until the hard delete sets in. This API call can only be used to get the configuration of the deleted instance; there is no way to reverse the deletion or invoke the instance later using API calls.