Why wait? Here is an easy way to get the $20 credit:
Purchase Online. Shop online and browse a wide selection of phones and calling plans. Find the phone, or SIM card, and plan that’s just right for you!
Note: To receive your $20 credit, enter your discount code (found in the P.S. of the letter you received). You must sign up before October 30, 2015, to receive the credit. Sign up today!
†Source: Nielsen Mobile Insights, Q2 ‘15