EcoLeo review for Blocky Fraud Filter IP Blocker

I am questioning if this works. I have all countries besides US blocked and also VPN blocked becaue I was getting alot of fake email subscribers. Well now I am getting many successful and unsuccessful orders from these blocked countries. It is obvious they are running credit cards to see which work and some of the orders go through and some are declined. When checking the transaction gateway details in the Shopify order page, it shows the country the order was placed from (Russia, Malaysia, Algeria, etc). I then have to cancel these fraudulent orders however I still have to pay the credit card processing fees as those are non-refundable. Therefore, Blocky is not doing it's job at blocking these countries. Perhaps the bots used are too fast for the Blocky app to trigger a block. I have contacted customer support and was told the development team would get back to me and they never did. So I will be cancelling.