Update:
Elite line transferred me to OPSC. The OPSC agent could not add the miles from last statement to current activity


. she kept saying, "I dont know why you are missing these miles...you probably never got those miles".
now working with supervisor...
EDA:
And supervisor was very good!^
So, they are apparently fixing my B-fare issue....with a codeshare flight operated by UA.
This means, they have to remove the original miles,and then repost the correct mileage.
So, very good to know eventually that the B-fare problem is getting fixed on my account (several people on FT have talked about the fare-class mapping problems on codeshares.....and that is a mistake I will not repeat!).