Sign up for weekly text offers from Subway and the first offer will be a free 6" sub when you buy a 30 oz drink. Enter your mobile number and your zip code at the deal link, reply to the confirmation text, and you'll soon be enjoying weekly offers from your local Subway locations. Message & data rates may apply. Maximum 10 messages per month. Messages may be autodialed. You can also sign up by texting OFFERS to 782929. For help, text HELP to 782929. To opt-out, text STOP to 782929.