Phone and/or Internet, too, if OP has bundled services. That's why OP would agree to pay. Charter puts the price on the bill.

The threat of losing cable/phone/net is enough to make a lot of people agree.

I will say that we have never had an issue since Charter bought out our local cable company.

OP should put Charter on notice that Charter should send out a proper repair person within a week, or OP will take it upon himself to have the repair made with a provider of his choice; he will then bill Charter.