LH paid compo for that? I would have thought that a volcanic eruption would be the most extraordinary of circumstances.
I cancelled a quite restrictive LH SYD-FRA-SYD ticket (with stipulated cancellation fees) on the scheduled morning of departure because the Icelandic volcano caused cancellation of Euro flights - including the inbound FRA-BKK that I was to connect to. LH
fully refunded the fare paid. But I had no other losses so can’t comment on compo issues.