Unauthorized charge

I was told my house had connection for xrinity. I switched and canceled my other service once the modem arrived in the box.  Because I was assured it was all there and easy to set up. I finally had an afternoon off to finish setting up the internet and there’s no aux connection. I called and they said I need a service agent to come out to physically assess. and now I see I’m going to be charged for that service!. This is a Huge inconvenience . I absolutely do not agree with that. I should not be charged for you to come out and fix your errors. you told me it would be easy and now I have been without internet and have to be home in the midddle of a workday for someone to come. I will absolutely cancel if you will be charging a $100 connection fee. If anything I should get a $100 credit for the huge hassle this has been.