I have sent my letter to the Woolwich (Barclays) asking for a refund od charges amounting to £10,605.50, plus £2,173.62 interest (total £12,77.12).
Received a letter back from Barclays and apart from a page of blurb, they have offered me £1,000.
Needless to say, I will be seeking the full amount in £5000 lumps.