Receive reviews with your own brand too

I always set up a custom resource for my clients with my own brand where their clients can then also choose to write a review on our own platform.(besides Google, Facebook and others platforms). This can then also be done without logging in (many don't know their password etc...) so this is used regularly. When I create this in custom resources and widgets, I also specify not to delete or change it. It would be easier if we could create that in our agency account, so the client cannot see it or change it. The client can only activate or deactivate it. Now I always have to do this manually with each client. The advantage is also that if they have received many reviews through our own system, clients are less likely to cancel their account. If not clear, please let me know.