Hi Kim
Welcome to the forums.
You need to handle this situation in the proper and legal way otherwise the debt collection calls will continue at your end. Since someone has already used your SSN# and acquired credit, you need to collect evidence that were used in the crime. For example, the social security number and the last name, the address/phone number that were used when the crime was committed. You need to gather some information so that the law enforcement agency can take specific legal actions.
File a police complaint at the place where this crime took place. It is very necessary to inform the matter to the police as you might have been a victim of identity theft.
Inform the original creditors about this identity theft. You will have to show the police case number for this purpose or sign the fraud affidavit. Send a copy of it to the collection agency as well. They are required to stop calling you after receiving your letter.
Write a letter to the credit reporting agency and inform them about this fraud. You can place your file under review for fraudulent entries so that it can be challenged and ultimately removed from your file.
Cancel the accounts that you suspect to be used in doing fraud. You need to notify your financial institution about this matter so that they can take appropriate actions.
Visit your local Social Security field office. Explain the situation and request them to change your SSN#. Show them each and every proof you have of this identity theft. They will review the matter and will make their decisions. There is no fee.