How to dispute an item on TransUnion (and why round two matters here)
TransUnion's first-round dispute system verifies a disproportionate share of items via automation. That means round-two letters matter more here than anywhere else — and that's where Loosn's automation pays for itself.
Where to mail a TransUnion dispute
P.O. Box 2000, Chester, PA 19016. Certified mail with return receipt. Same FCRA 30-day clock as Equifax and Experian, anchored by USPS proof of delivery.
What TransUnion has to do under FCRA Section 611
30-day investigation, mandatory furnisher contact, delete-or-verify, method-of-verification on request. TransUnion's published policies acknowledge that their automation flags items where the furnisher's stored data doesn't match the bureau's record — Loosn's letters target exactly those inconsistencies.
What works against TransUnion in practice
TransUnion responds 'verified' on roughly half of first-round disputes. The half that get deleted are usually identified by a single sharp inconsistency — wrong open date, wrong balance, missing original-creditor name. Loosn's AI ranks items by which of those inconsistencies it can spot, and writes the dispute to lead with the strongest one.
How Loosn writes the TransUnion letter
Loosn AI generates a TransUnion-addressed letter citing FCRA Section 611. On verified responses, round two cites Section 623(a)(8) directly to the furnisher AND a second-round bureau letter. On Pro+Auto-Send, Lob.com mails both.
Frequently asked questions
- How long does TransUnion take to respond?
- 30 days from receipt. Same FCRA clock as the other two bureaus.
- Why does TransUnion verify more items on round one?
- Their automated matching is more aggressive — they treat near-matches between the furnisher's data and their record as verified by default. Round-two letters that demand specific source documentation force a manual review, which is where most deletions happen.
- Can I see what TransUnion sent the furnisher?
- Yes — under FCRA you can request the method of verification, including what TransUnion sent and received from the furnisher. Loosn automates this request when the round-one response is 'verified' and the furnisher provided no source documents.