You can get a free 16oz hot or iced coffee at Pret A Manger Friday August 21 and August 28. Here's a location guide to find your nearest spot.
You'll need to download their app, then create an account and the coupon should appear under “Treats” on Friday.
Only valid for Pret App users. Treat valid for (1) free 16oz Classic Blend Coffee (hot or iced) on Friday August 21st and 28th. Maximum (1) redemption per app user per Friday in August. This treat cannot be redeemed outside of the US nor in the following shops: Wharton, University of Chicago, University of Pennsylvania, Delaware House, Thomas Edison, Vince Lombardi, or any airport shops. Treat expires on Friday August 28th 2020 at 11:59pm EST.