Checking receipts is extremely important, says former cashier – especially on Mondays. Expensive mistakes can creep in, especially at the beginning of the week.

For example, if you pay the price per kilo for an imported mango instead of an Annabelle potato, it can be expensive. It is also in the interest of the cashier to have the right amount of money in the cash register at the end of the day. However, it is not legally easy to complain about a price that is supposedly too high, as the consumer advice center explains.