DNA hair tools Styling Comb Pro

I bought this a few weeks ago after a demonstration and my hair has never looked better, but I just can’t figure out how to use it properly. I have only tried 3 times, it has never been dropped, it has been stored only in its original box. It heats up wonderfully at all the temperature settings. It comes with a lifetime warranty and I can definitely send the original receipt to anyone who purchases it. It was a package deal with a halo hair extension, so I paid $522, but on the website it retails for $274, plus tax.