My GF sent 2 DV letters to a CA, neither was reponded to. She disputed with the CRA's, verified. Then last month she sent a follow-up letter to the CA indicating their violation and asking that they either respond or delete the entry from her report.
Tuesday, we noticed that their hard inquiry was removed. Today, their law firm removed a hard inquiry. (She had two inquiries from last March, one from the CA and one from a law firm). They don't respond to her letters or delete the entry, yet they delete the hard inquiry!!!