Unlock code for Nokia 6102i

Could you please help me with unlocking my 6201i

Model: Nokia 6102i
Type: RM-162
IMEI: 352735018549605
Carrier: U.S. Cingular

Thank you very much for your help.

 

The new message I am receiving is:

"Cannot undo Restriction"

Any help with this please as well...

 

Please if you can provide the unlock code. Have gotten past the restriction problem. Much thanks in advance.