Why are there two open accounts for macysdsnb on my credit report but i have never had a macy's card Could it be because my mother had my name as being able to use her Hecht's card a long time ago?

If you check your credit reports and find one or more accounts open for a credit card that you have never had, notify the credit bureau and the credit card company immediately. It may be a case of mistaken identity, it may have to do with your mother's account, but it also could be a case of identity theft.