You are charging $150 for a product you have clearly rushed. How can a $150 private messaging plugin not even have a reply feature or a sent items folder?...they are the main features of such a plugin!
You've had to release two updates in 24 hours. It seems like you were too desperate to make some cash and didn't care about the quality of what you were releasing.
To say it took "a good few days of work" goes some way to explaining. Do you think a few days is sufficient?
Ps: I have the right to express my opinion so please don't delete my post like you have done once already.