They are trying to obtain informatin about me from my familz members.

These people are asking me they are from a courier company and one of my packet is lying pending for the delivery.  They ask me to give my detail to them and like whatere I stay, my address etc.  They frequently ask me for the above.

These people called my mother and said the same courier story, Looks like they are from a mobile company and anyone whom i know or i called from my number has a bill payment due. So for others nothing to worry, reply with a firm voice. They are just dogs, will bark a lot but never bite.