For a limited time Subway is offering a free 6-Inch Subway Sub with purchase of any 30 oz drink when you text OFFERS to 782929. Respond to any questions via text (like your zip code) and you will be rewarded with the coupon. Be SURE not to click “Redeem” on the coupon until you are in the presence of the Subway cashier! To opt out of future Subway offers you can text STOP to 782929.