If you don't intend to make a contribution, then why bother posting? You're making yourself look stupid. His friend got a message from a DIGI number, which means the DIGI number could belong to the thief. DIGI might be able to get the information of the thief through the registration details of the number's owner.

If, through a stroke of luck, the phone is recovered, there is no need to fly from Germany to KL to claim the phone. There is something called airmail, a service which you can use to post items to foreign countries, heard of that?