They probably do buy probably wont. You have to dispute it with the credit bureaus. There are 3: Experian, TransUnion, Equifax. You can contact then directly
here. or go to annualcreditreport.com and request each of the three reports and follow the instructions to dispute.
Note: It can sometimes take up to 2 months for it to show up on those reports (especially TransUnion, in my personal experience)