Hello Sir,
Good afternoon
first of all please try to communicate with that person who has given a negative review on your product and ask them to please remove this negative review from your product. I will definitely work on it to improve its quality.
And yes the person who has purchased the product and didn’t give any review yet you can email them and ask for reviews.
Please take help of your family and friends to purchase your product and give verified reviews.
You can send us ASIN of your product through which we can check your product.
Regards,
