As a Star Gold, if I buy a non-saver ticket in economy, I understand I’m entitled to one piece at 23kg (included) + a further piece at 23kg (Gold allowance). What if I need more? I don't see an option to purchase additional luggage at any level (other than the ability to purchase one piece on a saver fare). Or have I missed something?

Similarly, if I purchase a saver fare, I get no luggage included but the Gold allowance gives me one piece at 23kg. The LOT website gives me the option of purchasing “The first piece of checked baggage” up to 23kg for EUR27 (which I assume would give me a total of 2 x 23kg without the ability to buy a second piece). Will this purchase apply to all flights in the journey (not the itinerary) (e.g. KRK-WAW, 3-hour layover, WAW-CDG) or is EUR27 per leg?