They keep calling saying that they are drug enforcement agency & I have to send them money or I'll be arrested or will be picked up & carried to another country
This is a fraud. They work in conjunction with a company that sells prescription drugs without requiring a prescription. So they have your name and phone number from the fraud/scam ripoff drug company. They say they are calling re a DEA investigation. They try to blackmail you. Say you are recording their call as instructed by your local police dept. they won't call back.