This happened to me back in January 2015.
I stayed over at my best friends house the night before and I needed a lift to my parents house, as I was supposed to be having dinner there. I decided I would text my mum and ask if she could pick me up. She agreed and would ring me when she was outside.
I got changed and went down to my friend who was in the kitchen. We chatted for a few minutes and I decided I should grab my things as I knew my mum would soon be picking me up. I was just after finishing tiding up the room when my phone began to ring. It was my mum so I answered it but there was no one on the other end. I said "hello" and that's when a voice started speaking but it was very static. It seemed like it was bad reception. I couldn't make out what she was saying. So I just told her I'd be out in a minute and hung up. I said goodbye to my friend and went outside to my mum.
When I got in the car I started telling her that I couldn't understand a word she was saying on the phone. She was just looking at me like I had two heads. She explained to me that she tried to ring me but the phone call got cut off. She told me that she wasn't speaking to me on the phone. I thought she was messing with me at first but then I could tell she was being serious. She told me to check her call logs on her phone, just to prove that she wasn't talking to me and sure enough the call never went through. I couldn't believe it I was in total shock.
So if I wasn't talking to my mum who was I talking to?