Multiple sellers have been reporting that they haven't seen any new reviews on their product listings since 2/16.
It's always busy in the Amazon world, but this year has been especially so!
Amazon is getting more cautious about 'review manipulation' in follow up emails: as such, you need to be careful with how you word those review requests.
This week Amazon made a big change to their Marketplace email system. They’ve strengthened the email opt-out system for Amazon customers making it harder for sellers to reach customers with emails
Incentivized reviews aren't back, but Amazon is giving us something to fill the gap a little. Find out more about the Early Reviewer Program.