Our plugin is not a “Fraud” and this is a really offensive accusation. [modlook]
We offer free support for all users of our plugin and fix all problems that come to our attention.
A support thread would have been really more constructive and would allow us to understand what occurred on your website.
And if it’s really a problem with our plugin, a fix would have been provided to all other users.
Moreover I don’t understand how our plugin could have a bad impact on your meta description if, as you say, it did not change your meta description?