The problem was the FSA’s stipulation that banks, courts, and the ombudsman may defer processing/investigating any new claims filed until after the OFT test-case is concluded. Whilst that might seem reasonable the concern in the linked article was that this might allow the banks to wriggle their way out of liabilites through the six-year rule – hence the advice to register your claim with the county court now (ahead of any response from your bank).

The 2 Aug 2007 update linked article shows that the FSA have responded to this concern by clarifying that they won’t allow banks to use the six year rule to dodge legitimate claims. So registering a claim with the county court is no longer valid but it’s still recommended to file a written complaint with your bank now so you have proof of it for after when the OFT case is settled.