Direct Top Up is the simplest way to add a plan or minutes to your mobile account. You will not receive a PIN. After you enter and verify your mobile number funds will be directly redeemed to your mobile account. What you’ll get: Verizon Prepaid Instant Top-Up allows you to pay for all your Verizon Prepaid services. How it Works: After purchase you will receive a confirmation email from Walmart.com within minutes of successful order placement. A second email from Walmart.com will confirm successful redemption of funds to your mobile account. Keep in mind: There are no returns or refunds on electronically fulfilled airtime. Walmart.com is not responsible for stolen or misplaced redemption emails.