A downgrade survey asks customers why they moved to a smaller plan while the change is still on screen. This template takes about a minute: the main reason for the move, the features they expect to miss, a score for how easy the change was, and one open question about what would bring them back to the bigger plan.
It is written for your web app, as a popup on the screen that confirms the new plan. Target that page on any plan, or, from Starter or on 1 survey on Free, fire a custom event such as Usertick.trigger("plan_downgraded") from your code when the change is saved. The same survey also runs as a link in your billing email, or as an email from Usertick to the customers who downgraded last month.
Every written answer is read as it arrives and filed under a category from your list, such as pricing and plans or features and gaps, with a type, a sentiment and an urgency. Results shows the share of each reason against the period before, and selecting a reason narrows the whole page to those customers and what they wrote.