Call from DOTCOM courier company ... Fishy?

I am getting this phone call from a strange unknown courier company called DOT COM COURIERS, they say I have a courier in some person's name i don't know about, his phone is not reachable and as I am his reference (they say) they have my proper Address but in his name for Shipping.

Most astonishing thing is the person is from a particular Firm where my wife used to work earlier and she says there is/wasn't any person in this name in that Firm !!