How do i unlock my lg k8

I have an lg k8 from cspire but i need t have it unlocked. So i can put my family mobile sim in the unlocked phone.????
Thank you...


Moderati ergo sum
I am not discounting the fact that they can in some cases unlock carrier locked phones, but how much do they charge? It looks like by the way the site is organized that by the time you find out the fee you have already given them all your information. That doesn't seem quite right.