An issue we had with trust pilot is that we got a bunch of our users to give us reviews, and then trust pilot cut 40% of them based on whatever they have going on in the backend, they couldn't tell us. That for a small company is quite a valuable thing to lose tbh, they claimed they reached out to those people but ones who we are close with said they received nothing. They gave us no pathway to prove they were legit review, just deleted.
Left a pretty bad taste tbh, trust pilots only suggestion was to use their email setup where you CC them into customer comms and then later they email the customer themselves to ask for the review. Just seemed like a way to tie us in deeper with them.