I received a call 5 times at my work phone# claiming I have won a $100.00 free gift voucher from Wal-Mart because I spent so much money at Walmart this past year with my Visa card  (I don't have a Visa Card!).  I did not believe it, I hung up and they called right back insisting on me giving them my mailing address and then telling me this is free with the exception of a $2.50 shipping and handling fee for them to mail this voucher "direct to your doorstep"  He kept repeating himself as I kept telling him NO!  This caller needs to be reported and do not answer this caller if he contacts you.  It is one thing to call my cell but how in the HELL did they get my work#?!