Never received Amazon gift card

I signed up for 300 Mbps internet in May 2026, and at the time, Xfinity was running a promotion for a $100 Amazon eGift Card with activation of either a 300 Mbps or 500 Mbps internet plan. It has been almost 4 months, and I never received the $100 Amazon eGift Card. This is the only reason I signed up for the internet plan, so the fact I have not yet received the gift card is quite frustrating. I would appreciate Xfinity's help with honoring the $100 Amazon gift card. 

Edit: When I check on Xfinity's Incentive Tracker, it just says that my account does not exist.