A Sainsbury's voucher hack' has gone viral as social media videos show customers reducing their self-checkout totals to zero in seconds. The clips show people scanning the same code multiple times, each time reducing the total by a few pounds.
Despite confrontation, the man reduces his total to zero as the staff member asks him to stop. The video does not confirm if he was able to pay. Some are sharing the voucher online, leading Sainsbury's to warn against fraudulent use.
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