Problem
The existing billing portal was desktop-only and generating hundreds of support calls a month. Users couldn't pay invoices on mobile, couldn't distinguish between account types at login, and found the navigation confusing.
Intervention
Redesigned the portal mobile-first. Clarified login differentiation between account types, streamlined the payment flow, and redesigned invoice status states to be immediately scannable on any device.
Outcome
Support call volume dropped immediately after launch. Users could pay from any device without friction. The redesign addressed the root cause — not just the surface symptoms.