It has come to my attention that there is a very nasty scam going around. Apparetnly cashiers are adding cash back to purchases that people have not asked for. They then give the cash back to a friend who is in the queue behind you!
The scam involves amounts from £20 - £40 but I guess it can involve any amount, depending on what the cashiers feels he/she can get away with. So far Sainsburys have had the most incidents of this as they are one of the largest retailers but it is certainly not limited to them. This scam can be done anywhere at any store when paying by debit or credit card so please, please check your reciepts!
Stay safe everyone.
Kay