I hae a wireless prepaid account. I need to purchase more airtime but can't. I don't know my 4 digit security code. I can't do anything without it. I searched Verizon Help and found instruction for what to do if you lost your security code. The give a link to send an email to take care of the situation. To send the email you must know your 4 digit security code. I called customer service and the same thing. You must know your 4 digit security code to do anything. I went to the Verizon store and same thing. Can't do **bleep** without that 4 digit security code. I like my phone but can't purchase any more time so I quess I will have to go to T-mobile.