is fake nokia, some local mobile magazine already warn about it. actually not just nokia , as long as the model is popular there is a risk.
so have to check carefully not just the body but the software inside. normally the interface or screen resolution will be lower than the ori.

i saw a booth selling N95 in pc fair with very very low price , not even 1K ..

probably you can log a police report, bring the police report to digi customer service, see whether they can give you the customer info or not. if just walk in and ask you will sure be turn down .. as all telco customer info is confidential.