I just recieved this same letter and my no.s are also different. I too am going to call this guy and tell hima few facts of life. I work hard for my money and creeps like him and his buddies are not going to make a living off of my sweat. I also managed to call the bank (JP Morgan Chase Bank) and informed them. I was not the first to call in to them.
So be forewarned. This whole thing is a scam. I hope this guy gets caught. It the poor souls that actually think its real that will be hurt.