CM12, Simlock - cannot unlock phone, Galaxy s5

Hi,

I have CM12 on my Galaxy S5.
I have to unlock my phone for new sim. (SIMLOCK - ORANGE PL )
I have NCK and unfreeze but I cannot do it - it is asking me, I give codes (NCK, NCK+UF+NCK, UF+NCK), every combination.. but always - UNSUCCESSFULL.

What can I do?
I was trying to reestore factory etc.. no change..
Please..help...