I’m building a simple, menu-driven USSD application that lets customers pull up service details on demand. When a user dials the short code, the session should guide them through a clean set of prompts and instantly display the information they need about their subscribed services—no payments, no account balances, just clear service-level data. What I need from you is a fully functional USSD product, end-to-end: • Flow design and session logic focused on information retrieval. • Backend integration (API or database) that surfaces the service details in real time. • Short code configuration and connectivity testing with the chosen USSD gateway. • Source code with concise documentation so my in-house team can maintain it. • A quick demo or sandbox we can dial to verify the flow before we go live. If you’ve worked with USSD gateways, telco aggregators, or frameworks like Africa’s Talking, Kannel, or similar, that’s a plus—just mention it. I’m aiming for a lightweight solution that’s stable, fast, and easy for our customers to navigate.