Notttech Lab is a community of tech experts with diverse skills and backgrounds that collaborate to find software engineering solutions to problems. Our team provides top-quality service and ensures timely project completion at affordable prices. We would also like to introduce our new service, EXCEF (https://excef.com/), which enables users to send bulk messages to multiple customers with just a single click. Additionally, EXCEF allows users to conduct online surveys through SMS or USSD, allowing you to create your own questionnaire or custom menu and receive responses or statistical summaries of the responses.