I want to reset my pc

HI IM NEW ON THESE AND HAVE TRIED TO CONTACT NCKTEAM WHEN I LOG IN TO NCKONLINE AND SEND MESSAGE ABOUT RESETING MY PC, THE THING IS THAT MY LAPTOP WAS STOLEN AND THERE IS NO WAY TO GET THE CODE THAT IT ASKS ME, NOW IT SAY IS BLOCKED
Connecting to server, wait.
Error: This product key has banned in server
HOW CAN I GET THE TOOL WOKING AGAIN I THE FRECUETLY ASK QUESTIONS IT SAY TO DO MANUALLY BUT I DONT KNOW HOW CAN SOMEBODY PLEASE HELP, I HAVE THE PROOVE OF PURCHASE AND THE CODE THEY GIVE THE USER AND THE PASSSWORD EMAIL I HAVE EVERYTHING TO PROOVE....