please unlock iphone6

Hi bro
I have iphone but not unlocked and need paid
I donot register in att if you can unlock this phone or say me how much money for unlock this phone
Thanks
Imei:354951071240069

This device isn’t eligible to be unlocked now because all of the installment payments have not been paid.
Log in to your account to check your payoff information and pay the installments online.
You can submit a new request 24 hours after you make the payment.