Comcast Lies when it claims no charge if the problem is their fault, We placed a call because a box wasnt working correctly. The technician came out and found a faulty wire attached to the outside of the house and replaced it. My next bill comes and there is a $60 "installation" charge. I called billing and they said they have no policy of not charging for service. Someone is lying: Either the CSR when they took the call or the billing dept. Calling them is a "real joy" too.