Hello Baden,
I am one of the developers of Vintage Wedding Theme.
I honestly don’t know how can you complain about something you did willingly. You had no obliation of offering support, you could have easily redirected Mr. varunipatel to the theme’s support team and say that this is an issue for the theme developers, not you. This way Mr. varunipatel would have had an answer from a developer who knows that personal frustrations should be kept away from conversations/support with clients.
Also you are not licensed for “scraping off” a premium theme style, even if it is used with your plugin, so please refrain from using the “cloud city” style for your plugin.
All the best!
Alina