Comcast Service Center

My first experience with Comcast has been a nightmare. I ordered the modem to self install wifi internet, and the Internet would not work. I had to call multiple times to get a technician to come out and fix the modem (they had to reschedule two times). Three weeks of no internet later, a tech came out and replaced one of the wires and it worked. I immediately called and confirmed that I would not be charged for the three weeks my internet did not work. When my first bill came, they charged me. I called them once again and they apologized and said they would process my request of credit for 3 weeks. When my second bill came, they still charged me the initial amount without a credit applied, plus $ 45 fee of the technician coming to my house (which they did not tell me about). By now, I was frustrated and walked into the nearest Xfinity center to get everything figured out. The xfinity member told me my credit to void the 3 weeks of no service plus the technician fee takes up to two weeks to be approved by a supervisor. She told me to pay the full amount for now so that I am not charged a late fee, because they are unable to retract late fees (wtf)? So I paid the full amount, and she said once they credit my account the extra money will go towards my next bill. Well, sure enough, I just got my bill for this month and this did not happen. I’m going in today to cancel my service. Comcast customer service is useless.