Help missing channels

Some channels out of the blue disapered of line up , comcast claim that I have an outage , when I dont . couple channels just vanished from line up and the error message is saying to subcribe for these channels whrn they are inclued in my plan ?

Lost too much time on the phone with comcast, the rep gav me $5 credit when can help and teeling me there is an outgae in my area , when its not . Dont know waht to do? 

Bills paid account current indicated , no change on my plan , but can;t get access to what I ma paying for ?