That’s not true though. They only closed the account after he settled his mortgage. There was no criteria at all he fit after that, he didn’t even fit it before it, the whole point of it was to argue to allow for retention while he had the mortgage, not to justify the closure. It’s even titled that!
The CEO apologised for the characterisation of him in the dossier, not the reason for closing the account. Read the apology letter, it very clearly states it’s not policy to close for political reasons and never states closing the account was an error. That’s why he was offered a NatWest account.
Farage even says about the mortgage in his newsnight interview and clearly realises the daftness of his point.