3. Common Errors and Fraud Awareness

Common errors

• Double scan — remove the line before payment; after payment it is a void and needs a supervisor.
• Wrong change — if the customer disputes change, call the supervisor for a till count. Do not settle from the drawer on trust.
• Wrong tender type — report it; it affects reconciliation.

Fraud attempts

• Quick-change — a customer repeatedly changes how they want to pay or asks to swap notes mid-transaction. Close the drawer, complete one transaction at a time.
• Counterfeit notes — check large notes. If a note fails, do not return it; call the supervisor.
• Barcode switching — check the description on screen matches the product.
• Refund fraud — refunds without receipt always go to the supervisor.

Never accuse a customer. Follow the control and involve your supervisor.