If it's someone you think you may think it is you can try and track the email. You can google tracking the email and pull the headers off copy/paste and can find out an approximate location of where they are, their isp, ip and all that. You could probably do the same thing with the phone, find out the provider then contact the provider and try and get an address. I know that police can ping the phone or email to get locations, just not sure if they are that hip over in SA?
Wow, I will try that!
edit so i did try that! I found his IP address... since the mail belongs to gmail, it gives me a google server's address. But I have emailed a whitehat friend.. maybe we will have some luck!
thanks for you great advice