Sprint refusing to unlock iphones
We switched to sprint in 2017 (my ma thought it would be good to get 2 line plan at the time they were offering the free iPhone 7 when u switch) problem was they kept overbilling us we were supposed to pay $125 for everything (talk text and unlimited data for 2 lines) a month , the billed us $195 , they kept promising to correct the bill the never did so after 5 months my ma had to declare bankruptcy on one of the CCs because of the excess overcharges , we ended up switching to xfinity mobile (xfinity is our cable provider ima)
here err is the problem we shipped the old iPhone 7s back to sprint since we owed on 1 of them and they wanted the free one back as well so we did , they shipped them back and refuse to unlock them, (even though through bankruptcy on our end they were eventually paid off)
is there a way to unlock them through 3rd party , if your ex carrier is breaking the law by refusing to unlock the phones even when no money is left owed on them?
if I have to I would JB the 2 phones but I’m not sure if that affects Apple side or the carrier I wanna keep the phones on apples service I’m just looking to unlock the phones ?