Just a question!!

Hello, i dont know if you can help me with this, I had my US embassy interview and got the VISAs already, but ive noticed that on the stamped US VISA, the written passport number on it(VISA) doesnt coincide with my actual passport number and this is the same thing with my wife, but as to regard with my son, they got the passprt number right, I dont know if its a reason to worry in case it will be a problem. Ive phoned up US embassy and advised me to email them which i did and still waiting for reply. But if any of you know any advice, it will be greatly appreciated.