Twisp Edge not switching off

I am very disappointed in the Twisp Edge devices. <br> <br> I bought my device in December 2015. It's been only 4 months and my device is faulty and a serious safety risk . I switch the device off, light flashes indicating the device is off but it continously vaporises. The device heated up so quickly I had to use a towel to disconnect the battery from the atomiser and tank completely. <br> <br> The exact same thing happened to my partners device I'm February 2016.<br> <br> Is there no quality control process on the twist devices before being sold to us customers??? <br> <br> What is twisp going to do about this???<br>