Post-service Claim Determinations. A post-service claim is a request for a service or treatment that You have already received. If We have all information necessary to make a determination regarding a post-service claim, We will make a determination and notify You (or Your designee) within 30 calendar days of the receipt of the claim if We deny the claim in whole or in part. If We need additional information, We will request it within 30 calendar days. You will then have 45 calendar days to provide the information. We will make a determination and provide notice to You (or Your designee) in writing within 15 calendar days of the earlier of Our receipt of the information or the end of the 45 day period if We deny the claim in whole or in part.