I live in pa and have been contacted by an agency that I owe money to IDT phone service. Now they can't supply me with a service address or want to hear that I never had this service. It has never apeared on my credit report and the service "date" is from a time when I had no service.This is the first time I am hearing about this and have no intention of paying for someone elses bill. What are my legal actions and for S&G's what is the statue of limitations on collectiig a debt of this type. What do I need to do to prove to them that I do not owe this debt.