Default Sim unlock help

Hi

I recived code for sim unlocking online service but it doesent work. (Type it in and gives message "password incorect")

I contacted them online and they told me that they recived code directly from my carrier and it has to be good.
Am I doing something wrong or they just did not suplied me with proper code?

Thanks.

Sent from my HTC One mini using xda app-developers app