Technically, we can look this up, but it is a huge amount of work. In the past, we have looked up several times, especially for the "more important" competitions (national championships, especially junior/child national championships where parents often register their children). These types of emails are regularly sent (usually by parents).
Every time we have looked into what had happened, it turned out that the parents or the child had never registered, or had deregistered or done something else strange (for example, registered for a completely different competition). If you would like more information, it is best to call 023 2014 111.
This has been automatically translated into English