If you receive a phone call on your mobile from any person,saying that he or she is a company engineer,or telling that they're checking your mobile line,and you have to press #90 or #09 or any other number,end this call immediately without pressing any numbers. There is a fraud company using a device that once you press #90 or #09 they can access your 'SIM' card and make calls at your expense. ...black woman and child