internet tv

i have spent 2 days trying to get internet moved 4 hrs on phone and now after finally getting internet to work no xfinity tv on my roku ,frustrated behond belief it takes the numbers then says error try later well later is never i see everyone is having a problem  what have you done to fix instead of get into the internet black hole   that is comcast should i delete the app and get sling or someone else because they do not seem to know what they are doing in two days i have got everything from cable being unplugged witch it wasnt to service call which i never made to we dont have service at that location which i do finaqlly got running after they told me one hr wait for technician and i hung up  anyways anyone find a way to get roku to work or am i wasting my time