Going in circles for over 2 months with customer service

Hello, 

Back in September we went to the Burlington, NJ "store" to upgrade our phones and to add ONE line. We had to order said phones and wait until they were received to proceed. After we received the phones, I realized that they added the line we requested, but also added TWO additional lines and numbers without authorization or consent. We have spent over 8 hours in store in Burlington and Mt. laurel locations to fix this and it was not. Also found out that the phones we were told were upgrades were not and there were payments for the phones added to our bill. Placed a call to customer service and was told that the issue was taken care of and that we could return the phones. Customer service rep said he would email labels to return the phones. We only received 1 label for 1 phone and the additional lines were not taken off of the account. Another call to customer service a week later and were told the same thing, the additional lines were removed and the rep was going to mail the label to return the remaining phone. That didn't happen. When we called back we were told the label would be sent again. When asked about the 14 day return policy, we were told not to worry it was noted in the system. Eventually one of the unauthorized lines was removed, but one still remains on the account. Called and spoke to a "supervisor" to which I was told "there is nothing that can be done to return the phone, it is past 14 days and to deal with it". After trying to explain the about the note in the system he said "there is nothing that can be done, deal with it" and that he would end the call.  I NEED TO HAVE THE ONE LINE REMOVED AND TO RETURN THE PHONE AND THE BILL TO BE CORRECTED. We are still overpaying for 3 months now.