Gone are the days when TSB was Britain’s most recommended high street bank, named that in 2016, or when it was rated the best high street bank for service by Which?, a brand name used by the Consumers’ Association, dubbed so in February of last year. In the biggest IT migration disaster since the RBS shut out customers for over a week in 2012, the bank’s customers are facing an 11th day of disrupted or non-existent service either online or via mobile apps.

The complaints on Twitter include disappearing mortgages, access to other customers’ bank accounts, and payments to cable service providers for 81 years in the future. If it weren’t causing real misery, the spectacle would be amusing; claims by the bank’s Spanish parent Banco Sabadell of a successful migration of its 5.4 million customers, LinkedIn photographs of smiling, Cava-sipping IT engineers celebrating “victory,” and announcements by TSB’s CEO that problems were all solved last Tuesday have only done further damage to the bank’s reputation, branded “Totally Shambolic Bank,” by the Daily Mail newspaper.