Technician Fees Not Disclosed Upfront

I recently transferred my Cox service when I moved and was told I simply needed pick up newer equipment, plug it in and would be up and running. That was not the case. I chatted with tech support who was not able to resolve my issue and was told that a technician would need to be scheduled to come out. No mention of a charge for this service was made by the representative. The technician came out and was able to get my service up and running and I inquired on if there would be a charge. He stated no, he did not see one listed. Now my bill is out and I’m being charged a $100 for the visit. I spoke to 2 separate representatives who apologized for the miscommunication from both of their employees (appointment setter and technician) but informed that the charged must remain. Completely unethical and a true lack of customer service to provide a service to someone, never mention a service charge, and then add a huge fee to their bill. The fee is more than the bill itself. Cox is really lack luster in their customer service and I truly understand why others refuse to sign up with them.