Originally Posted by mahasamatman
That is wrong. My wife and I often upgrade a single PNR from two sources. All you need is an agent who knows what he/she is doing.
Upon check-in, yes it works. But
never so far had I got this working ahead
of time. Not with SWUs, nor CR1s, nor 500 milers, nor miles, nor paper certs.
So where do you call to get it right?
My experience is with
stevenshev so far.