I just got off the phone with FlyBE after my latest attempt to get them to add my OnePass number to my reservation. They at first *INSISTED* that I call Continental. After doing some insisting myself I was put me on hold for a long time. They then came back and asked me for my OnePass number and they have supposedly added it to my reservation.
If you get stuck on this ask for Michelle when you call FlyBE reservations -- she says she now knows what to do and how to do it!