Originally Posted by RichardMannion

1. For the standard 2200GBP annual fee, you get 3 actual Centurion cards
- two are for you as the 'basic' cardholder; one in Titanium and an AC (Additional Card) in plastic which in theory is so you can separate personal and business spend. I use one for online purchases and one for cardholder present purchases
- one additional primary supp card in Ti for someone of your choice
2. You then get by standard up to 4 additional supplementary cards in your choice of Platinum, Gold or Green. You can pay for additional cards beyond this.
3. The travel insurance applies to anyone that has a card, plus their spouse/domestic partner and their children (I recall it goes a little higher for age limit if they are in higher education). So for example, my sibling is one of my supplementary cardholders so he has a Platinum card, but it is him, his wife and his child that are all covered via the insurance.
4. Travel doesn't have to be booked or paid via AmEx.