I am sorry for any inconvenience you experienced with the W3 Total Cache. However, can you please share the screenshot of the red circle and a dialog box where W3TC is asking for a review as there is no such thing in the W3 Total Cache, especially not the red circle dialog box?
Please provide any evidence so we can check this and confirm it’s coming from W3TC.
I’m only responding because I was shocked to hear from you. Typical that it came from an email to which I can’t respond. Now I’ve got to waste time coming to this forum (you have the information you need to allow an email response to be posted to this forum).
Next time it shows up, I’ll do a screenshot, save it, edit it, save it again and then send it to you. All so that I can show you the intrusive blunder that shows up on my WP Dashboard. This is important (to you, not me) because you work for a plugin that has free and premium versions yet doesn’t post ads on my dashboard asking me to buy the premium. I’m not sure I believe that but I will send it.