Former cashier strongly advises checking receipts - especially on Mondays. Ex-cashier reveals when customers should be extra careful.

This particularly applies to items whose price is not clearly indicated via a barcode. The person at the checkout then has to enter the code manually. If you pay the price per kilo for the imported dragon fruit instead of the Gala apple, it can quickly add up. Be careful, telephone fraud: under no circumstances should you answer your cell phone with these telephone numbers.