I moved and I got a letter from Citi (Sears credit card) saying I owe 325.19. I called them and said I paid it off. We figured out I had 2 accounts from the same company and same store. They said I owed 64.00 and never paid it. I also said I moved but have had the same phone number for 9 years and never once received a phone call in regards to any of this. I explained I have always paid all my bills and wrote a letter to Sears Dispute Center on April 22,2015 and never had any response. Now I have a letter from a collection agency. Is this for real?