good for you greggy,
I have done it 3 times now. Its so easy, you will have your money back before you know it.
As for banks closing your account, I wouldn't worry, The FOS recently told a bank to pay compensation to a customer after their account was closed. It was ruled as retalitory action and against the rules.
The guys at penaltycharges.co.uk are fantastic, they will give you any advice you need. They admin work on a voluntry basis and depend on donations to keep the site running, so remember them when you win :wink:
Ps. I have nothing to do with the admin on penaltycharges.co.uk, they just helped me get back £1,000's of my money.