This document provides an introduction to a master's thesis that examines factors affecting customer loyalty within the Saudi mobile telecommunications industry. The introduction outlines the background, research questions, objectives, and structure of the thesis. It discusses the competitive mobile market in Saudi Arabia and importance of customer loyalty. The research aims to study the relationships between service quality, price, value offers, trust, satisfaction and customer loyalty. It will examine what influences customers' choice and switching behavior between mobile operators. The findings could help operators improve customer retention and satisfaction strategies. The study is focused on mobile users in Riyadh and investigates the impact of three key factors on loyalty.