Simply share your unique referral code, and when you get 5 people to join Mint, you will have earned $240 of renewal credit to put toward your next plan renewal. That’s enough to get an entire year of an 8 GB/mo plan for free. Oh, and don’t forget, each friend that signs up also gets a $15 renewal credit.
T-Mobile U.S. offers a Refer a Friend program that helps the existing customer earn a $50 referral coupon for each referred friend.
Refer a friend to Verizon and you (and your friend) may be eligible for a Prepaid Mastercard when your friend signs up online for qualifying residential services using your referral code.