Almost two thirds of the utility bills were wrong: The market guards at the consumer centers had pre-buttoned bills for around 1,000 consumers from 2011 to 2017. Errors were found in almost 60 percent of the invoices checked or they at least needed clarification.
But how do laypeople find these mistakes? First of all, one should question what is actually allowed to end up on the bill. In our photo gallery we present the permitted items. In this text we explain which trickery is illegal.