Hi - I’m new to Avios. I am currently £17 away from unlocking the companion voucher from my BA Premium Plus Amex and have been looking at reward flights using the tool on the BA website. My question is - if I have only 1 companion voucher and 2 adults that would be travelling, do I search companion flights for 2 people?

Because I’ve not unlocked the voucher yet, I don’t have it on my account when searching so if for example I’m currently searching 2 people on the reward flight page and the cost is 220,000 Avios + £800 would it still be the same once the voucher is applied?

Also, my wife is currently pregnant with twins, once they’re here how do they work with the companion voucher if travelling with us? Is it while they’re still under 2 we just pay taxes and no Avios for them? Any help greatly appreciated. Thank you ☺️