senior complaint

I am a senior on a fixed income who has been a customer for 5 years. Recently I had a service member to my home to discuss getting connectivity to the 3rd floor of a townhouse. He advised me that I needed to upgrade to PureFiber [when in fact I don't]. I was also offered a security package [prices were only mentioned in a general way]. Maybe he was trying to be helpful, but he wasn't. After receiving a bill, I realized this wasn't for me, and I asked to cancel the new services. I was told it had been too long, although it was within 10 days of the billing date. 2 hrs on the phone [nov. 12] led me to believe changes would be made, but the latest bill [dec. 2] did not show any changes. So the message is that talking to team members is a waste of time. If you can't cancel these charges and let me return to the earlier package I will be forced to leave.