Can you not use 1 voucher to upgrade the outbound for two, and then log back in and select another voucher to upgrade the inbound?
Could do, or make a separate return booking for each passenger. My concern is that in between making the first and second bookings the availability changes so I could end up not getting back on my flight of choice or a second discounted seat is no longer available after the first booking is made…….as mentioned I have thirty + years of BA IT systems🙄
The screen shot clearly shows that two vouchers can be used so I’d really rather have both passengers on one booking with one booking reference.
But thanks for the suggestion.