Itz good you have noted the car number and phone number. I went through the same situation but lucky had a photo for as an evidence. What you can do is report the matter to to the police station saying he is not answering the call. try to make a call in front of them. Max to max they will hand over the case to patrol police all over Qatar and try to catch him. Don;t expect any quick results, it may take weeks, In my case, al faza caught that driver after 3 weeks. I nearly lost hope but thank god and that rascal was fine with Qr. 5000 hit and run violation.and buy a cheap camera mobile.