Motorola — nothing but trouble!

I bought the Motorola Moto G 2nd Gen on the 10/03/2015.I have had nothing but trouble with it. It turns itself off for no reason and sometimes doesn't turn on at all.I tried to return to store but they want me to video what the phone is doing! How do I do that when I live alone and have no way of videoing? I have had a gutful of this crap phone and will tell anyone I speak to not to ever purchase a Motorola phone. One shop assistant told me to factory reset which I did, no different. Will NEVER buy another Motorola product! Disappointed customer.