Sorry, no guarantees.
This is a service wherein we allow you to make your book(s) visible to those who may like to read and review them. Other authors select the books they want to review at their discretion. Your book needs to have a compelling cover and description to entice reviewers to read it.
The quantity of reviews you may receive has many factors but the biggest two are how often you publish the book to the library and how popular your book or genre is to potential readers/reviewers.
It is up to you to keep your book(s) in the library so they are visible to potential readers. The more times you publish your book, the more reviews you will get. For example:
If you have a popular book and are consistent about republishing it to the library, you have a greater chance of receiving more reviews.
If you have a very niche book that does not have a large reader base and you don't publish it to the library very often, then you'll have fewer reviews.