AT&T – Poor service by att

I had DSL internet from ATT for many years, then, last January I turned my smart tv and surprise, no internet. I thought that there might be a temporary problem, so I waited and waited and nothing.
I was able to connect to the Internet by using Xfinity's $10.00 a month internet for 2 devices and after googling to find out what was going on I found out that ATT had discontinued DSL for good in my area.
I went to my account page and was only able to suspend (vacation mode), unable to close the account on the same page. Well... after three months I get this email from ATT telling me that I was behind on my payments. Pretty shady, I have to say. I was cut off the internet with no notice, after which I even went to one of their stores in my area, but all they could do was offer me a higher premium, wireless plan to which I said: I'll think about, thanks!
After I got the charges for service I was cut off and didn't get, I called ATT and talked to someone who told me he couldn't take care of it, not even close the account. Instead, I was transferred to someone overseas, with again, more B. S and demanding that I should pay, because I had only suspended, not closed my account with them. How can this happen in the United States with a major Corporation, treating customers like meaningless nobodies.
If I had ordered something online and the merchandise was not delivered, how do they expect the customer to pay for nothing?
I would give ATT -1 star, but since there is no such option I'm gifting them with one star.
Very bad and most likely a DEI corporation, run by unprofessional, unqualified people.