In the past few days Google have merged google checkout with google wallet. This will be noticeable when making your next payment online.
If you’ve used Google Checkout before, all you need to do is login with your Google username and password to buy from us.
If you’re using Google Wallet for the first time, just fill out the single page of information when you make your purchase. After that, you’ll only need your Google Wallet login to make a purchase.
Looking at google wallet it does appear to be cleaner than google checkout and simpler to navigate, especially when leaving a review.
Once logged into your https://wallet.google.com/manage/#reviews)”>google wallet account, click on My Seller reviews , choose a transaction and leave a review as shown below.