Amex Business Platinum bonuses vary: 200k is the standard public/referral offer, 250k can often be pulled with persistence, and 300k exists but is rare. None are no-lifetime-language. After reviewing comments, forums, and groups, here’s the current picture on the Amex Business Platinum welcome offers: None are no-lifetime-language (NLL) offers — if you’ve had the card before, you’ll likely see the pop-up jail. In short: expect 200k by default, most can likely surface 250k with some pa...