I was lied to and I switched my phone service.

Why was I lied to about the free year phone service? I was very happy with my phone service at Cricket. I called to transfer my WiFi service because I moved. In the process of setting up the transfer I was offered free phone service for a year if I switched my phone service to Xfinity. I didn't ask about their phone service. I was made the offer. After finely getting the switch done and my new phone activated (it took 3 days to activate the new phone. And then the person helping me gave up and hung up. I continue to work at downloading the e-Sims card to complete the phone setup). The next day I happen to be browsing around in the Xfinity app and see that I have a service bill. I called Xfinity to explain I was supposed to have free phone service for a year. After finally speaking with a supervisor I finally succumb to them telling me that I didn't qualify for the free service for a year. Again I didn't qualify for a service I was offered. And the solution they came with was reprimanding the person that sold me the service I now have to pay for. Not a happy customer.