Flew recently with AC LAX-YYZ-CPH. Had our TK FFP *G in the system. At LAX we'd want to credit the flights with UA (better mileage - and we are UA S). At LAX agent couldn't do anything, she said the best bet was to call AC's CS. At 8pm Pacific Time I had to queue more than 2 hours to get through to AC's CS. I gave up.

Arrived at YYZ, I found a staff who told me that it should have been possible and she told me to queue at B18/21 (can't remember) at the check-in area. Finally was my turn and I explained to the staff that I really need the YYZ-CPH to be credited into UA. He first said it's impossible since the journey has started. He was very suspicious why a *G want to credit his/her miles into *S account - I explained to him that I have already re-qualified which is true. Then he went on saying that there are frauds going on with people trying to get 2 accounts credited with one leg.

I asked what if he removes it, and he said, 'the previous leg is already history since the journey has completed - so the miles will be credited to TK'. I said fine since I won't get much with UA anyway.

He removed all the FFP, then I said, 'Since there is no FFP, can't you add them in?' He said I'll try and he got our UA S printed on our boarding passes!