Chargeback Blacklist for Shopify
Block fraudsters once. We’ll handle the rest.
Stop fraudulent customers with our community blocklist. Block by email, phone, address, or payment, and cancel high-risk orders before fulfillment.
Blox stops the customers who defraud you.
Block repeat fraudsters, prevent chargebacks, and stop refund abusers before they place another order. Cancel high-risk orders before fulfillment, so trouble doesn’t reach your warehouse or your processor.
A merchant-powered blocklist.
When one store flags fraud, all stores are protected. Customers are deduplicated. Simple rules. No AI black box. No per-transaction fees.
- Block by email, phone, address, or paymentEasily block any customer without complex fraud rules.
- Stop duplicate accountsAuto-group customers with multiple accounts: different emails, same person.
- Shared network protectionAny customer blocked on another store is flagged for you to review. Hold chargeback abusers before they hit you.
From merchants on Shopify“Looooove blox. We have a huge issue dealing with a ton of return fraud/abuse as well as weird customer behavior. Been using Blox to find unprofitable or problematic customers and cut them out of our customer file to save us the operational and financial headache.”
Hold or auto-cancel high-risk orders, discover your worst customers, and auto-block blacklisted shoppers, with a free plan and 30-day trial on paid plans.
Block fraudsters once.
Install Blox from the Shopify App Store and turn every block into shared protection.
Install on Shopify