SAP LICENSE

Hi Experts,

     I have a question about SAP License. I have upgraded(System Copy) the hardware of our SAP System with different computer name then a message prompt that our sap system will expire on 2nd week of january.

     As per checking since the hardware changed we need to request new license key.

     My question is:

          1. is there any additional cost for requesting a new license key for our new hardware?

Thanks