Experience has shown that in most underpayment claims the proper recipient is readily
            apparent, and that as a result of DO development, a claim will be filed by the qualified
            person. Therefore, the carriers have been instructed that, if the DO has assisted
            in the development of the case, they may assume that the claimant meets the requirements
            to receive the underpayment. Accordingly, the DO should not forward to the carrier
            a claim involving an underpayment without the evidence or statements necessary for
            payment.
         
         Upon receipt of an inquiry in the DO, ascertain whether the services in question have
            been paid for. If they have not, see GN 02335.020. Where the bill has been paid, inform the individual of the requirements under which
            payment can be made and offer assistance in filing if it appears the individual is
            the proper recipient of the underpayment.
         
         If another person is the potential payee, explain that the other person should file
            the claim. Subject to the tolerance in B., below, contact the qualified party, or
            if the circumstances permit, ask the inquirer to have the qualified party contact
            the DO. Do not take a claim from an inquirer who is not qualified unless the inquirer
            still wishes to file after having received a full explanation.
         
         If the potential claimant resides in another service area, transfer the carrier assistance
            request to the proper DO. If regional guidelines require it, notify the carrier of
            the transfer.