Ha ha lol what? In the grand scheme of things its a tiny amount of money for a bank with a €1tr balance sheet, the overhead of recovering the cash, not to mention the poor publicity, will be enormously costly, but most of all, how exactly is paying out £100m from the banks own funds supposed to benefit the bank??

(btw this actually will increase the banks leverage, which according you i imagine they'd want to be reducing, plus will negatively impact the banks CET1 capital, so all in all not beneficial in anyway whatsoever)

European banks should have been let fail... Facts on the table, please.

People should check the statistics first before making such statements. An average US bank is probably 12-13% capitalized (own equity Vs total assets. An average European bank is probably 8-10%. It seems less at the first sight, but if you take negative rates into account in Europe Vs positive ones in US, that's not such big difference at all. In general,banks are well capitalized both in US and Europe. Of course, not all apples are good (we're got 3000 or so banks in Europe), some are surely close to going belly up if not the government support (Italian banks, I'm looking at you). But that's a far cry from all European banks should have been let to fail..

There have been places that use the one-time accounting trick of shifting payroll from paying at the end of the month to paying on the first day of the following month.

It reduces outgoing cash for a single fiscal year, once.

Deposit accounts are liabilities for banks. This move would negatively affect Santander's position.

Err no. The payments get settled at BoE at the end of the cycle. This would have caused double draw on their settling account. They would have had less money.

Nothing of what you said makes any sense to me. There may be some liquidity strategies but not moving millions between accounts by error.

And letting fail a bank like Santander, in the top 5 in Europe and probably top 20 in the world, would bring enormous systemic problems.

According to someone I know you’re full of it. Stop making up stories on the internet and/or find better “friends”.