The original call comes from a cell phone out of Prescott, Arizona. Saying you have a undeliverable package and to call the Chicago number at 773-253-5114. The number they call you from is 928-233-7546 < a cell phone which cannot be traced..the number they give you to call back is 773-253-5114. What this is..which I researched it...they tell you they have a check in the amount of $1 million dollars, they have the check waiting for you..but to secure the holding check..you have to send them $300. Now this is a class act of a pure scam! do not fall for it!