If you have followed my previous suggestions and it does not work, then I recommend contact Google and ask for examples of issues.
I have the same issue , and I made the request for the review three times now and i had the same reply and i contact them they told me should raise the request again but i don't know what is the real issue ( https://www.jogoss.com )
If you have followed all my recommendations, then most likely the issue is trust. Google requires a certain amount of trust signals from the merchant to be eligible. So I recommend you work on this for set duration and then try again once you know your trust has increased.