Thumb Score: +24 StackSocial has for New Tello Users: 6-Month Tello Prepaid Plan: Unlimited Talk/Text w/ 2GB LTE Data per month + $20 StackSocial Credit on sale for $39.20 when you apply coupon code SDTELLO20 during checkout. Thanks to staff member f12_26 for finding this deal. Note, must be logged in to your StackSocial account to apply coupon code (sign up here).