Now a days a missed call scam is going on . In this you get a missed call that is international , and when you call back you are charged at a high rate , that is international rates. When you will call back you would be told that you have won a lottery and they will ask you to be on hold . In this ways your money is going waste and you are being scammed.
Mostly these types of calls have a number starting from +92 and +302.
Don't call back if the number is starting from +92 or +302 otherwise you may be the next victim.