Originally Posted by brahms77
So, here's my question. When using SWU to upgrade LH flights, what can I do to minimize my chances of mileage miscredit to UA MP? Should I specifically request, at the time of the check-in (and boarding), that my upgraded flight to be listed under the original booking code?
Sadly, the only choices are to not upgrade at all, or to credit to a different program...
...unless it's a rare situation where an agent slips up and books you into a C/D or F/A.