Apologies if I am being dim and this is available in the stickies.

In May, Myself and the GF are travelling EDI-LHR-JFK-LHR-EDI in WT+

If the opportunity arises would love to upgrade using Avios.

We are on a single PNR, each with our own BA account

If I choose upgrade with points from the MMB does it only take points from my account or split it from both of them?

As far as I know we can't set up a Household Account as my main Address is in England and hers in Scotland, although we do use the Scottish one for my BA contact address.

I know it is a busy route and the chances are low but I would like to be prepared if something comes up.

We don't fly a lot but did CW to Orlando 2 years ago and then got op-upped to CE both ways on our IB\BA trip to Barcelona last year so are completely spoiled .

Thanks for any advice/guidance

Wemorwell