https://www.t-mobiletuesdays.com/ -if you’re a T-Mobile or Sprint Customer download the T-mobile tuesdays app and login. Go to the “available now” section to get a Free $5 Dunkin’ Card. They have limited quantities, but it’s good for the next 12 days. –Update– this is probably a targeted offer for Select Sprint accounts, so if you’re not seeing it that’s why.