This is not a surprise and is a perfect example of why #PrepaymentMeters are state sanctioned abuse and should be banned outright.

"There are people who are not vulnerable who just don't pay" is not an excuse. If just one vulnerable person is forced onto a prepayment meter, that is one person too many. #BanPrepaymentMeters

https://www.bbc.co.uk/news/business-64491243