Providers may return a payment by going into the attestation portal within 90 days of receiving payment and indicating they are rejecting the funds. The CARES Act Provider Relief Fund Payment Attestation Portal or the Provider Relief Fund Application and Attestation Portal will guide providers through the attestation process to reject the funds. Providers must return the payment within 15 calendar days of rejecting the payment. To return the money, the provider needs to contact their financial institution and ask the institution to refuse the received Automated Clearing House (ACH) credit by initiating an ACH return using the ACH return code of “R23 - Credit Entry Refused by Receiver." If a provider received the money via ACH they must return the money via ACH. If a provider was paid via paper check, after rejecting the payment in the Payment Attestation Portal, the provider should destroy the check if not deposited or mail a paper check to UnitedHealth Group with notification of their request to return the funds.