If I have a prepaid China Mobile SIM card from Hong Kong. Is there a way to add minutes when I am traveling overseas? When I was at a party my friend took my Aadhar card xerox copy that I keep in my purse.  I am worried he will issue a prepaid sim card on my Aadhar card, as there is no signature so anyone can issue a prepaid sim card. I'm worried someone can commit fraud with that sim card. What should I do?