You're Going to Have to Spend a Lot More to Get the Amex Platinum Sign-Up Bonus

American Express just announced policy changes that would make it a little more difficult for Platinum Card holders to use the Centurion Lounges. Now, the company has made an unannounced change to the terms of the Platinum Card's sign-up bonus, which is sure to upset aspiring Platinum Card holders.

Amex Raises Minimum Spend for Platinum Card Sign-Up Bonus

The Platinum Card may cost a pretty penny at $895 per year, but it comes with a massive sign-up bonus to sweeten the deal: as much as 175,000 Membership Rewards points...