How to earn bonus points with Amex Velocity Platinum referral as Platinum Edge cardholder?

I need some clarification regarding the above card.

I have a platinum edge, my wife has a supplementary card. On the Amex referral site it asks you to choose your card - (plat edge) which doesn’t allow for a referral for Velocity Plat.
Do I just choose the Velocity plat and referr that.
I am assuming that my wife would get 100k + referral bonus and I would get 20K.

Appreciate your advice.

Hey Ross - unfortunately to earn bonus points you need to refer friends/family to the same card type that you already hold - so a Membership Rewards Card to Velocity card referral won’t work (to my knowledge).