If you get 2 dates then 2022-03-10 is the last trading day and 2022-03-11 is the expiration day. For the symbol, the same day as in the TWS favorites list must be used. I am also not sure if the root N225M and the trading class is correct. You normally can see the root symbol and local class on the website of the exchange. I think the root is N225, not N225M.