This is from the Xfinity web site – I noticed the link when I went to my account and this was the offer that comes up. I hope it helps someone that reads this:
Service Matters
At Comcast, your military service matters to us. In gratitude for your service, we have a special customer offer if you are currently serving in the military or you are a veteran: a $25 Xfinity coupon that can be used toward your next Xfinity On Demand rental or purchase or as a credit toward your bill. In addition, if you signed up for Xfinity service with a minimum term agreement on or after January 1, 2018, you are eligible to receive a special $100 Visa® prepaid card as well. To redeem these special offers, complete the below application process by March 21, 2020. If you have already submitted your application and want to check your status, call us at 1-800-948-8174 weekdays between 8:30 and 5:00 pm est. https://military.xfinity.com/#/welcome