If you encounter account fraud or discover unauthorized transactions not made by yourself, please follow the steps below immediately to secure your funds.

I. Immediate Loss Prevention: Lock Your Card

Please log in to the BKJ Card official app immediately and follow the path 

Note: Freezing your card will not affect subsequent inquiries or claim processes; it will only restrict transaction functions.

- Please log in to the BKJ Card official app immediately and follow the path 
  【Cards → Settings → Lock Card】
  Note: Freezing your card will not affect subsequent inquiries or claim processes; it will only restrict transaction functions.

II. Contact Customer Service &amp; Submit Documentation

After freezing your card, contact customer service within 24 hours to report the fraud/unauthorized transaction. Please prepare:

Transaction evidence (screenshot of the app transaction, clearly showing time, amount, and merchant information)

1. Your registered full name
2. Linked phone number/email
3. Transaction evidence (screenshot of the app transaction, clearly showing time, amount, and merchant information)

Customer service will launch a special investigation upon receiving your documents, prioritizing fraud claims.

Updates will be sent to your linked phone number or via in-app messages. Preliminary results are typically provided within 3–7 business days.

- Customer service will launch a special investigation upon receiving your documents, prioritizing fraud claims.
- Updates will be sent to your linked phone number or via in-app messages. Preliminary results are typically provided within 3–7 business days.

BKJ Card Quick Guide for Unauthorized Transactions

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BKJ Card Quick Guide for Unauthorized Transactions

I. Immediate Loss Prevention: Lock Your Card

II. Contact Customer Service & Submit Documentation

III. Follow-Up & Feedback