Upcoming Maintenance Relias’ payment portal is undergoing scheduled maintenance, starting on Friday, 8/20/2021 @ 7 PM PT and lasting until Sunday, 8/22/2021 @ 7 PM PT. Customers will be unable to use the payment portal during this time. Thanks for your understanding. We're here to help! Click on your product below for billing assistance. Relias Invoice Number starts with SI- For questions regarding billing, please reach out to: Email: AR@relias.com Phone: 919-655-7934