Xfinity promotion scam

During a phone call to Xfinity late July of this year I was asked about my wireless carrier. I told the agent I had Verizon and was happy. She told me that Xfinity wireless was very similar to Verizon and they were offering a $100 prepaid gift card per line if you transferred your line to Xfinity wireless. I told her I needed some time to think. She offered to call me back the following day so I said sure. She called me several times during the next day and when I was able to connect, she again told me about the $100 per line prepaid gift card promotion they were offering. So, I decided to move forward the switch from Verizon to Xfinity.  It wasn’t easy but after a period of time, I got it working. A few weeks passed so I decided to call and inquire about the gift cards. I was told that I will be receiving them shortly. More time past I called in again to follow up.  To this point, I have over a dozen phone calls and countless hours and still nothing.  Doing some research online, I am finding that I am not alone. It seems this practice is common with Xfinity.