There are 2 main reasons for this situation:
Our database registers main offices (headquarters) and branches separately. These records will have the same name and Tax ID, but different DUNS Numbers.
It is possible that a company's record was accidentally duplicated; you can request the report on any of these records and our team will clean up the database and deliver the correct DUNS Number.
NOTE: our team always delivers the report of the headquarters even if you request the report of a branch, the reason for this is that HQ reports contain the most information about the company and also include details on any branches registered. If you need the report of a branch, you can reach out to our support team and they can review if an exception is possible before you place your order.