Referring users can get 2 GB of storage for every successful referral. New users who create an account can get 5 GB of storage.
You will get $20 off your first purchase of Tupperware. The referrer gets 500 points when you spend over $30.
Our members haven't found much information on Keybase's current referral program. Feel free to submit more details or clarify Keybase offers for other members' benefit.