Canceled my internet service after 6 years

January 2nd I moved from one address to another. I simply wanted to transfer my service. I hooked up the modem and it did not work. I tried calling Xfinity just to be told I do not have an account. I chatted with someone and they tried to help me. They couldn't. I chatted with someone else and they tried to help me by deleting my account and adding it back. This did not work. I will send a text stating I had an appointment for a technician to come out January the 5th between 8:00 and 10:00. No one showed up. I chatted with someone else and was told I didn't have an appointment. I sent her the text message. She said that she could get me in between 3:00 and 5:00. No one showed up. I chatted with someone else just to be told I didn't have an appointment. I also got a text with a bill. My bill was $339. I chatted with someone to find out why. I was told I had a $100 installation fee from them coming out January the 2nd. No one came out. After chatting with 10 agents I asked to speak to a supervisor. I was told the supervisor would do the same as the agents. I spent my whole day trying to get a technician to come out and also to get the $100 removed. I was only giving the runaround. I spent over a hour on the phone trying to cancel my service. I will try again tomorrow.