Hello @karenelated,
This should not be happening!
The notice you see in the backend is just to request users to give us good ratings if they are happy using the theme.
But, this notice can certainly be removed if you opt out. It shouldn’t be appearing again. I’d suggest you to please contact us through our support center to see why its happening at your end.
I am sure talking and conversing with us will encourage you to give us a 5 star.