If the false duplicate materially increases your reported debt, avoid making several important credit applications until the correction is complete where timing allows. A new lender may calculate obligations from both entries even when you explain the error verbally.
Ask for written source confirmation
Request that the reporting lender confirm which account number is valid, which entry should be closed or removed and when corrected data was sent to each bureau. This gives you evidence if one bureau remains wrong later.
Check outstanding balance and DPD independently
A duplicate can carry different payment history from the real account. Make sure the correction does not remove the valid account while leaving the false delinquency. Review all fields after the update.
Keep old reports
Save the before-and-after bureau reports. If the duplicate reappears after another reporting cycle, the historical evidence shows that the issue was previously acknowledged.
Escalate only the unresolved reporting problem
If the lender confirms the error but does not correct it, use the lender’s grievance process and the relevant bureau dispute route. For an eligible unresolved complaint against a regulated lender, the RBI complaint mechanism may become relevant. Do not pay a private company that promises instant deletion.
A duplicate account is a data-integrity problem. The goal is one accurate tradeline with correct balance, status and history—not simply a higher score.