Thanks, that does seem to be very similar to the issue I'm also having - hopefully there's something wrong with their system temporarily then. Will have a look!
Looks like the transaction is already been confirm and according to the address almost 1 btc plus is in this
https://blockchain.info/address/12koSJgNGSVWbPfN8G4ZViy3iKpGxPJ1hLIt means its should be inside of your ledger nano you can also export the private keys and import it in electrum. .
Just to see if your bitcoin is there this is much easier
Backup the private keys of this 12koSJgNGSVWbPfN8G4ZViy3iKpGxPJ1hL
And much better to contact the support you can use the contact email from this site
https://www.ledgerwallet.com/contactIt isn't showing in my ledger nano though, and I've tried resetting and reinstalling the bitcoin chrome app as recommended by the contact email @ ledger wallet. How can I access the private key? I have been looking for that but I couldn't find a way to do it through the ledger nano.
Is there any chance that 1) it's still on the way to me, even though it's confirmed?, or 2) the QR code accidentally went to a different wallet, or 3) the ledger nano created a separate wallet as the was the first time it was used and that's since been overwritten?
Thanks so much for your help, I'm pretty stressed by all this!