I purchased XXXX iPhone 6plus in full payment of {$940.00}. They are charging me an extra {$530.00} for monthly fees when the phone has already been paid for in the full amount. As I refuse to pay extra they put it into collection which is now on my credit report. After speaking with a sprint representative they noted that the phone has been paid in full and for me to notify they financial department of the error that has been made on their behalf, but they refuse to take it off of my credit.