If you just want to update to LE14 and you have an LE5 license showing in your Steinberg account then you can request a free upgrade.
Try this thread and tag Matthias like you can see others have done further up the thread.
To add to what @Grim and @Reco29 already said, since Cubase 12 there is no eLicenser anymore, the licensing is via the Activation Manager (that will be installed together with the latest software).