Problem with theme Structura

I bought the theme structura by schiocco. I’m having a big problem with menu links that don’t work in a responsive version. So I wrote to the author but he replied that he was not the author. Who should I contact?

Best regards,

Author says they support the item and you get 6 months support with purchases

They can’t just say they are not the author if they are answering official support queries.

If they continue to not help then talk to envato or get a refund Envato Market Help and Support