Customer service complaint

I have been a customer for over 16 years.  We recently moved and had our services transferred.  That is where the problems started.  We had an excellent package prior to moving and now I pay almost 2x as much for 1/2 of the items.  The 2nd issue is I was told I had to have  home security to have the package discount.  I told the rep I did not want it.  They said I could cancel after moving. Services were transferred on 8/17  I called on 8/31 to cancel the home security which had never been activated.  I asked for a shipping label to return the camera.  I was not told I was on an installment plan for the camera.  After 2 hours on the phone I finally got a label mailed to me and was told that the services had been canceled.  I mailed the unopened camera back.  I got a confirmation on 9/8 that the equipment was received. 

I was charged for 2 months of services plus the payment fee on the camera totaling $30.  I called again on 9/19 and spent over 3 hours being bounced around.  Finally I was told by Patricia that the services were canceled and I would have to call back the next day to get the money credited because that office was closed.  I called on Monday and spent another2.5 hours being bounced around.  I asked for a supervisor.  Finally Amy (employee # 70495) told me that there was nothing that could be done because my services were canceled 2 days after the 30 days and that I would have to make 22 more installment payments for a camera that I sent back to Xfinity.  I asked to speak to her supervisor because I didn't understand that how she could not help me.  She said her manager doesn't take phone calls and there is nothing that can be done.  We argued for 15 mins and finally she said she couldn't help me and that she would be ending the call.  At this point is not just about the money but the horrible customer services I have had.  I have been a loyal customer for over 16 years.  This is unacceptable.