The BA call centre seem to be repeating this mantra of "bring your own car seat" as I was told exactly the same thing but I don't understand how this works. I didn't think it was possible to fit a regular car seat on the bassinet ledge or am I wrong? Do any of CC on here have experience of this working?

I know BA say on the wyou can bring a car seat for a baby / young child if they have their own seat AND the car seat is forward facing but given UK car seat requirements and that baby won't have a separate seat, I don't understand the advice