hi Mohamed,
I will try:
AcyMailing program to connect HikaShop so when delivered HikaShop store order status, AcyMailing x days automatically sends email to the customer.
Buyer shall not vote in the product, there is not a comment, but even then, when the product is received, tried.
After X days.
You'll get an email, "tell us your opinion."
And this does not send admin manually, but the program.
Answer customer email, opinion appears on page admin, admin can moderate and publish the website under products.
Product reviews will appear below.