NBU Payment System Down for Maintenance
The NBU payment system will be down for maintenance from approximately 5:00 p.m. on March 31 to 12:00 p.m. on April 1, 2023. Customers will be unable to make online or over-the-phone account payments at this time.
To report an outage or service issue, please call 830.629.4628.
We thank you for your patience.