Can Cox open up new accounts under your name, expect you to pay the bill, then send it to a bill collectior even though you had no knowledge or gave your authorization to open up these (2) new accounts?

I'm afraid to talk with anybody from Cox. The last 2 times I did it got me no where, even after I provided everything. In order to prove my case, I would have to send Cox my bank statements & no way am I giving that to Cox. If Cox gets my bank statements, how many more accounts will I have open up without my knowledge? It's not like I could trust Cox. They have given me every reason not to trust them.  Let's just say, since I found out about having 3 separate accounts with Cox, I make dam sure all three account numbers are on the check my bank sends to Cox  every month. That one check is paying for all 3 accounts. Even after that time I contacted Cox, proved that they were in the wrong (I was crying because I was so mad) they transferred me to 5 or 6 people & when I proved Cox was wrong, they would transferred me to someone again & again. I still have cox internet, I still pay the outrage fee every month like I always have. I would say the bill was paid already & that all 3 account were suppose to have been all combined. Cox would say that the gentleman I talked to was wrong for telling me that all 3 bill were paid in full. He was wrong, not me. They told me I had to pay for "services rendered" on an account that instructed to have shut off the second week in January but Cox kept it going (in a vacant house) until the end of February. So there was no services rendered because no one was living at that address. I told them the could even check the data usage on that account, at that address, if they didn't believe me. All I really want is to have this billed that was paid back in February, I want this taken off my credit report. I would also want everyone who has an account with Cox to know that at anytime Cox can open multi accounts under their name without any consent or knowledge & that Cox will expect them to pay what ever amount they make up & then even after paying them, the will still send it to a collection agency & it will be placed on your credit report. If it happened to me, how many more people will Cox do this to?