I've just realized my award booking in C on LAX-MUC is no longer operating around xmas (due to W12 schedule changes). Nobody from the issuing airline (BD) or Lufthansa reached out to me about this. The new routing is LAX-FRA-MUC, but it leaves 6 hours earlier in the day.
Do you think it is unreasonable to call LH and ask to fly a different date? Or will this be shot down due to no award space being available for that date?