Yes, the American Express Platinum card does pay for Uber Eats purchases. In addition to normal ridesharing, the American Express Platinum card Uber Cash Benefit consists of credits that cover food costs, delivery fees and service charges anywhere in the U.S. when using the Uber Eats app.
Here's how the American Express Platinum card works with Uber Eats:
What you get: The American Express Platinum card comes with $200 in Uber credits annually. That's up to $15 in credits every month, with a $20 bonus in December (up to $35 total). Cardholders are automatically enrolled when adding an American Express Platinum card to their Uber account.
How to get it: The Uber Eats app is separate from the Uber ride-sharing app, so you will need to download it to your mobile device before you can apply the American Express Platinum card Uber credits. All payment information saved in the Uber app transfers to the Uber Eats app, which allows you to use your credits as long as your American Express Platinum card is linked to the Uber app.
To use the credits in the Uber Eats app, select the "Uber Cash" function from the drop-down menu of payment methods. If you don't have enough Uber credits to cover the cost of the food, Uber will charge the remaining balance to the American Express Platinum card linked to your account. Credits post to your Uber account on the first day of each month. Unused credits expire at midnight on the last day of the month and do not roll over to the following month.