We sincerely apologize for the inconvenience.
First of all let me explain the working of plugin for you.
This add-on enables you to have multiple columns/elements in one row for mobile devices. This was not possible with only Avada theme.
In our live demo website and in our documentation, we have clearly explained the working of this add-on. -> http://fbmlc.wpsqr.com/documentation/#use
I am sorry if you did not understand the working of add-on and bought it. If that's the case, we can issue a refund on your request.
This rating you gave us is unfair, our plugin does what we claim. We never said it will require css media queries or will enable you to make changes on same page. We have mentioned that it creates a new mobile page layout for your page
However, if you think you can use the add-on with a little help from us, we are always here to help you.
Have a nice day :)