Verizon Wireless Theft over $500 Wallingford Connecticut

I am not a Verizon customer.  They took $521.43 from my checking account.  I called them and finally was routed to the fraud department.  They said they could not do anything to help me because they only deal with identity theft.  I told them all I needed was for them to fax my bank to let them know I was not a customer and these charges are fraudulent.  They could do anything.  If I get my money back, I will have to get my bank to dispute this charge.  The person who did this must work at Verizon or hacked Verizon.  How do I know?  they used a checking account I used years ago for my Verizon payments when I WAS a customer.  That was 4 years ago.