If applicable, the credit card company may require that you include proof of your identity theft incident such as photocopies of the ID Theft Affidavit, a filed Police Report, any letters to credit bureaus, etc. Contact the credit card company to determine what additional information, if any, may be required.
Photocopies, not the original copies, of any relevant documents should be included with the letter (unless otherwise required by the credit card company). You should keep a copy of all written communications with the credit card company and maintain a written summary of all oral communications.