FOR IMMEDIATE RELEASE PRESS RELEASE CSG SYSTEMS INTERNATIONAL REPORTS FIRST QUARTER 2024 RESULTS Confirming All 2024 Financial Guidance Targets Revenue Coming from Industry Verticals Outside of CSPs Exceeds 30% for the First Time Returned Over $160 Million to Shareholders in the Last Twelve Months, including$19 Million in Q1 Continued Strong Sales Performance with Many Key Wins in Q1, including MTN and Banglalink DENVER--(May 1, 2024) — CSG (NASDAQ: CSGS) today reported results for the quarter ended March ...