You need to wait for them to write to you. They probably haven't even processed your case yet! I imagine there's hundreds of people caught each day which presumably need adding to some sort of database and case management software. They have up to 6 months to deal with this, so just stay calm and wait. You can't really speed it up.
If you're lucky, they could even lose your paperwork and nothing ever arrives!
The court isn't going to get involved unexpectedly, so don't worry about that just yet.