Armex: Block Checkout Bots

Had a bot attacking my store and adding something to the cart as random customers. It ends up flooding my e-mail system, e-mailing fake customers, and bumping me into a higher payment plan. The ONLY way it would stop was to have Shopify require customers to login to check out, which hurts conversion rates. I tried several apps, Flows, and Cloudflare (which I found can't be used with Shopify), and nothing else worked. It's been over an hour and from the moment I enabled it, it has blocked the bot (which hits every couple of minutes or so).