Ironically, if you were to sue Abbey you might have to show why your claim was not statute barred. I know, I know, it's terribly unfair - we only get 6 years to sue them they say they get 12 years to sue us. And they too often contact us just as 6 years is up.(posted 8546 days ago)I think that to sue the Abbey would be very expensive.
On the other hand, a well organised class action, co-ordinated, say, by a sympathetic group of backbench MPs, and operating on a no-win-no-fee basis, might work wonders. Especially a class action that focused on under-valuing, under-marketing and under-selling of properties.