Writepress Theme claims support but none

This Theme author is not responding to a bug that seems to have developed. I have asked for a refund and no answer. Where do I go next?

Writepress Personal Blog and Magazine WordPress Theme - ThemeForest Item for Sale

Writepress Personal Blog and Magazine WordPress Theme

How have you tried to contact them? e.g. email? Via the form on their profile?

How long have you had the item?

What’s the bug?

Are you using the most up to date version of the theme, of WordPress and hosting PHP?