Stolen identity? crediters have name and address but its not me how do i prove it?

Crediters have said that in my name a bill of over 1000 pound has been used on a credit card. i have no connection or my wife has no connection with this bank, but how on earth am i going to prove it? worried sick and because of the anxiety it is causing trouble in an otherwise happy household. someone had the same problem? i know a lawyer could sort it but it more expense. any constructive help plz . thank you.
Answer
Call clark howard. http://clarkhoward.com/