Complete Payment Recovery Services Tried to get money from me for a check I did not right. NORTHPORT Alabama

Complete Payment Recorvery Service wrote me a letter saying that I had bounced a check at Walmart on 10/9/14 for the amount of 206.49. I called the number given in the letter. I told them I have not written a check in 20 years nor do I do business at Walmart. She said maybe I had cashed a business check at Walmart. At this point I started to be supicious. I do not have a business. I wanted more information on the check, she said to me not to worry about it. It was probably someone with the same name as mine. She said they would not bother me further. This does not sound like a collection company to me. I am taking the letter down to the Post Master in the morning and reporting it.