With a TeleSec card, you assign one when you initialize (activate) the card SigG PIN2 and Global PIN2. These have the function of a PUK.
To restore the PIN that has been blocked due to multiple incorrect entries, start Sign Live! CC and select the menu item "Tools > Smart Card Tools > Reset PIN". Follow the instructions in the dialogs.
If you have not assigned a PIN2, the signature card is blocked.