Check the Card is not altered, damaged or expired.
Always obtain a valid authorisation code for the full value of the transaction.
Never split a charge to avoid your floor limit threshold or to skip authorisation.
Be suspicious of purchases with different delivery and billing addresses, orders for large numbers of identical items, and requests for immediate delivery of expensive items.
Always prioritise Chip and Pin procedure for chip card. The terminal will give further instruction on how to proceed with the transaction(s).
Ensure the signature on terminal receipt(s) is matching with the signature at the back of card.