After travelling on a booked MF discount business ticket LHR-AMS-XMN-HKG rtn with the LHR-AMS-LHR flights on a KL codeshare (in Economy) in the springtime I am looking at a another ticket for the Winter holiday, since MF was a good prince and the B789 has OK seats. ITA Matrix (see image) is listing the 1st MF entry as LHR-AMS in KL with business class booking code I, whereas the 2nd and 3rd has the LHR-AMS flight in KL economy booking code Y. These are the same price. Any idea how to book this KL codeshare I coded ticket (I tried at the MF website) but it is not an option, as ITA MAtrix lists? Or is ITA Matrix incorrect to list them?
Thanks