For the past two or three Review emails I received, the link takes me to webpage, indicating that the page no longer appears to be there.
I’ve cleared my cache & rebooted my phone, but I simply cannot leave feedback for my transactions.
I am sorry for the confusion regarding the User Review Tool. Unfortunately the User Review tool has been down for the past 90 days, as our feature is being reworked and migrated to a new server.
We will update our user members at the Kijiji Community Connect Forum, once the issue has been resolved.
And now I know. 
Thank you.