Disappointed client

Disappointed by how Vodacom treat us. I had 100 minutes and R45 airtime on the 15/07/2025. I was busy talking to my mom and our call ended. I told myself that it is a network issue. When I tried to call her back, the insufficient airtime thing came . As to how I don’t know. 16/07/2025 called them they said i used the minutes all of them yesterday and when i count the minutes they don’t add up and my airtime also gone. Very disappointed by the way they fo their business.