Mekex Innovation interview questions

They asked not to use the mobile during the interview and during my interview I was given a drawing. I was making 3D model and during that my internet got disturbed and I got out of the interview. I didn't notice because I was busy making 3D model. They texted me through WhatsApp. Now tell me how I'm going to see text when they asked in the start not to use the mobile. Why didn't they called me.