Credit reporting or other personal consumer reports — Experian Information Solutions Inc. (CA)

Investigation took more than 30 days. A month ago, I submitted a complaint to these Bureaus, but the incorrect information on my report is still there. I haven't heard back from them, aside from your notification that the company has replied to my complaint. How can I trust that they've properly investigated the inaccuracies? What steps did they take to verify the accounts? This entire situation is really frustrating, especially since it's been over 30 days since I filed my complaint.