Originally Posted by pbr6891
At this point :
1) is there any benefit to call UA to reenter my MP# ? (like having higher status should anything unusual happen , cancel flight/rebook, op-up chance higher ... )
You'll have a slightly higher chance of getting the meal you want, although, even as a 1P, that should not be difficult.
Originally Posted by pbr6891
2) are there any risks of loosing my confirmed upgraded seats while doing the reentering the MP# manipulation ? (what do I need to say so that my upgraded seats do not disappear !)
I would doubt ti, since the reservation isn't changing, its just a MP number. But who knows, just ask the CSR first, they should be able to tell you.