Refuse to listen and help long time customer

So I have been a customer with XFINITY since 2009.  I have been frustrated with them many times because of the price increases without any warning. Well to take the cake of being frustrated with them I called on the day that I closed on my home to have my service transferred immediately. The rep that I spoke with advised me that the service would be transferred and canceled that day and there would be no additional charge to me because I had paid my bill a few weeks prior. 
I asked what I needed to do to ensure that I had WiFi at my new home and she advised all I had to do was take my router with me and I would have WiFi. Ok great fabulous. No more bills from the old address and lower price for the new address. 
well the WiFi only worked for about 24 hours in the new house and I was getting texts that my equipment would be arriving soon. Once I received the equipment there was a whole new router that would not connect at all. After spending day trying and almost two hours on the phone it was found that the router they sent wasn’t even on my account. Ok fine let’s just get it taken care of. 
well I get in the app and notice that my next debit will be almost $100 more. So I call and ask why. Come find out they didn’t cancel my service until a later date and I am supposed to pay for something I was told was canceled. When I was on the phone both men were very condescending and told me that I have to pay for something I had no benefit from and they don’t have to honor what I was told in my initial call. 
I have never felt so disrespected and taken advantage of until I spoke to these two men. I agreed to pay for the Netflix but I should not have to pay for other services that were supposed to be canceled but because Xfinity wants to steal peoples hard earned money I am getting [Edited: "Language"] over. I will be contacting BBB and submitting a complaint to the US attorney general as Xfinity has taken advantage of my and my stupidity for staying with them for 17 years