I'm sightly worried because I phoned up '08700011226' which according to google was a NATWEST bank number. I set up a bank account, but im slightly worried now because the number was not on the natwest website, nor did it have the same set up.
Is it possible this was just a fake number to steal personal details.
I had a similar sort of thing - a random automated message left on my mobile answering machine asking me to ring a number with my details because they suspected fraud on my card. It sounded like one of those incompetent "you have inherited £10million please send £10,000 to Nigeria to claim" scams, but when I rang Natwest Customer Services it did turn out to be genuine. Shocking incompetence on the part of Natwest, but there you go.
If you are in doubt, ring the main Natwest Customer Services number to check that it is genuine and ask to be put through.