I disputed a medical bill on my credit report. i disputed it with the credit bureaus and with the collection agency who reported the bill to the credit bureaus. in attempting to verify the debt, thr collection agency sent me an itemized list of medications with a total that was well below the total they claimed that I owed and haphazardly used and shared sensitive and private medical information in the process. I sent the collection agency another letter of dispute, and also disputed the information with the credit bureaus again. HOWEVER, the credit bureaus have marked the bill as verified and are no longer allowing me to dispute the bill with them, due to the fact that they have already " investigated and verified the debt '' but can not disclose the sensitive information that proves the debt has been verified.