Get $800 when you switch a family of 4 to Sprint. Steps to get your Visa® Prepaid Card: Add a new line to Sprint from 1/13/17-2/2/17. Join on eligible plan. New accounts (established 1/13/17-2/2/17) must activate on Unlimited Freedom or Best Buy One. Existing accounts (established before 1/13/17) can not be on 50% off Plans. Turn in your current working smartphone with value >$0 in Sprint store or at sprint.com/buyback using promo code JANVISA. You'll need the serial number of the phone you turned in, so make sure to keep your store receipt or email receipt containing the serial number. Allow at least 2 days then register at sprint.com/switchtoday within 30 days of activation. Visa Prepaid Card will arrive in 4-6 weeks after registration and receipt of turn-in phone.