# Blue Business Plus

1 signal tagged Blue Business Plus (card).

## How to refer friends to American Express cards and earn bonus points

May 19 · 1 source · Delta, Delta Air Lines, Marriott Bonvoy, American Express Membership Rewards, Delta SkyMiles, Blue Business Plus, Delta SkyMiles Gold, Marriott Bonvoy Amex, American Express, promotion

American Express cardholders can earn bonus points, miles, or hotel points by referring friends via personalized links. Offers vary by card and account, with examples including 10,000 points for Blue Business Plus and Delta Gold

[Full signal](https://thetravelsignal.com/s/how-to-refer-friends-to-american-express-cards-and-earn-bonus-points)

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