Xfinity did fraud on my account

I called today to see about a plan that might be lower than what I'm already paying on my account and to find out some questions about possibly transferring my mobile phone over to Xfinity. First they thought they may have had a good plan because I don't use a lot of the gigabytes on the plan I have. And I go up quoted basically for the same price I'm already paying but was told that I was going to be losing the discount for my box here at the house and my price is going to go up in May to $94 versus the 45 I'm paying. Then she thought maybe I could qualify for the essential internet program and transferred me to that department. But found out that it was a fourth of the speed for $15 less than what she quoted me. So then they transferred me to billing and payments department to see if maybe they could find something for me so that they wouldn't lose me as a customer. So then I talk to this gentleman and he was pretty much quoted me the same stuff but then told me that I'm about borderline with my gigabytes that I may go over and then a monthly it's going to cost me if I go over my gigabytes. When I was just told I barely use any from the first agent I talked to. I told him that somebody was lying to me and it sounded more like he was trying to get more out of me. So it was left that they were going to call me on Friday in the afternoon to see if I change my mind because I wanted to check out with the mobile company that I have for my cell phone now to see what they had to offer for internet service. 2 hours later I find an email saying that my plan that I originally had was canceled and a new policy was drawn up for $70 a month starting next month. I called them to tell him that I approve nothing of this and then they needed to fix it and put me back on the $45 a month plan that I was on. They tried telling me that they sent me a link and I approved it or somebody in my household did. I told them I didn't know such thing and I am the only one that's got access to my account there's nobody else in this house with me. And then she tried quoting me $10 more than what they quoted me for the lesser one they offered. I says I am so tired of the runaround being charged more and people trying to get more out of me I want to speak to a supervisor now. So watch your accounts and make sure they don't change things on you. Because I did not approve this the last agent I talk to went ahead and process this without my approval. I will be looking for a different internet provider I feel like I cannot trust them.