Error when redeeming $50 Xbox eGift Card offer

I'm trying to redeem my Verizon Fios Home offer for the $50 Xbox eGift Card that was part of my package's sign up incentive. I keep getting redirected to an error page during redemption. The error page is entirely blank with the exception of the following message:

{"STATUS":"ERROR", "DETAILS":"missing vz_jwt"}

Please assist.

Re: Error when redeeming $50 Xbox eGift Card offer

Hi jillyfish924,

Your issue has been escalated to a Verizon agent. Please check your Private Messenger Inbox for a message from a Verizon Support agent. You can find your Inbox by clicking on your username at the top right corner of this page and then clicking the envelope icon that appears at the top of the menu. Response times may vary. Please continue to check your Inbox for a reply from a Verizon agent. Please direct all correspondence concerning your issue to the agents who will be assisting you privately.