Daftboy review for Amai Bulk Discount & Sales

The App doesn't work. I paid for their annual $299.50 plan and I verified that payment went through via Shopify and in their own app, and they are asking for an additional $18.95/mo to upgrade to use the basic features of the app. I did go into their chat for help and sent them screenshots of the payments that I made and asked for help. But they are unable to help and claim that my payment was "canceled" when I can see that the payment went through in their app, via Shopify, and via my bank statement all of which I provided to them. At this point, I've paid $299.50 for an app that I can't use. I'm forced to update my sale pricing myself which means I'm out of the Time and Money this app promised. WORST APP EVER!