In the end I closed the account before they did.
They were not satisfied with my lies and scheduled another call. They asked about every payment, after having the account for many years. The only time I ran into problems it was because the payments were so obviously from betting companies - and the problem I ran into was with a Santander business account. * open a cashplus account as a screen to prevent your final high street bank from knowing who sent the money initially (and flag you)This is a good idea. * open a business account with a high street bank, say you do lead generation or web marketing or SEO (which you do)