How to redeem $50 visa prepaid gift card

I had my Fios installed about a month ago and the sales agent promised a $50 visa prepaid gift card for setting up the service. Once I had my account set up and login to My Fios account, I received a message said "In order to receive your reward, you must register within 60 days of your Fios installation. Please take a few moments and do so today." and it takes me to which is an expired link and never works (I've tried it multiple times). Can anyone on the forum explained how can I obtain my prepaid gift card please? Thank you!

Re: How to redeem $50 visa prepaid gift card

Hi kwlee,

Your issue has been escalated to a Verizon agent. Please check your Private Message Inbox for a message from Verizon_Support. You can find your Inbox by clicking on your username at the top right corner of this page. Please direct all correspondence concerning your issue to the agents who will be assisting you privately.