Skrotten

Got my Hana last friday, and it took only 3 hours before the display went black. Everytime I reboot it it comes back, but then it goes black again when I push the fire button. Sent a mail to Hana and they replied pretty quick, asking me what atomizer, ohm etc I used on it. I answered them and asked for a solution. Now, they wont reply. No answer at all. What ?? Any suggestions?