Sallie Mae has publicly apologized for a coding error, potentially affecting around 1 million customers, that caused some consumers credit scores to drop over 100 points, and some consumers report that their dinged scores are already back up. If your score is not back to normal and you are in the middle of a transaction where your good credit is at stake, Sallie Mae said it will provide a credit reference letter. You can also call Sallie Mae customer service at 1-888-2-sallie. Sallie has pledged that the fix is in, but consumers can still take matters into their own hands by pulling their free credit report from annualcreditreport.com and disputing the incorrect information with Experian. Note, it’s against Federal law for creditors to report false information to credit bureaus, and consumers can sue violators up to $1,000.